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[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947

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[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
Labels
Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner

Description

@awakecoding
awakecoding
opened on Aug 30, 2026

Important

The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
Pull request: #132922

KBE authoring guidance (ci-failure-scan)
  • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
  • Build Analysis parses only the single JSON block under Error Message.
  • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
  • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
  • ExcludeConsoleLog is false because the assertion is present in the Helix console log.

Error Details

Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.

Error Message

{
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
Agentic workflow metadata (ci-failure-scan)

Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 2 hits in failure.log

Note

This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.

Known issue validation

Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
Error message validated:[Can not unadvise from empty connection point]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/31/2026 6:08:08 AM UTC

Report

BuildRepositoryTestPull Request
1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922

Summary

24-Hour Hit Count7-Day Hit Count1-Month Count
273737

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    Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner

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var __re = new RegExp('^' + "github\\.com" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
    Skip to content
    [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
    Open
    Open
    [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
    Labels
    Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
    Description
    @awakecoding
    awakecoding
    opened on Aug 30, 2026
    Important
    The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
    Build Information
    Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
    
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
    
Pull request: #132922
    KBE authoring guidance (ci-failure-scan)
    • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
    • Build Analysis parses only the single JSON block under Error Message.
    • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
    • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
    • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
    Error Details
    Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

    The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
    Error Message
    {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
    Agentic workflow metadata (ci-failure-scan)
    Workflow artifact: ci-failure-scan
    
Artifact kind: kbe-verification
    
Verified match count: 2 hits in failure.log
    Note
    This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
    Known issue validation
    Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
    Error message validated:[Can not unadvise from empty connection point]
    Result validation: ✅ Known issue matched with the provided build.
    Validation performed at: 8/31/2026 6:08:08 AM UTC
    Report
    BuildRepositoryTestPull Request
    1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
    1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
    1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
    1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
    1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
    1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
    1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
    1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
    1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
    1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
    1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
    1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
    1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
    1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
    1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
    1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
    1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
    1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
    1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
    1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
    1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
    1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
    1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
    1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
    1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
    1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
    1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
    1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
    1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
    1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
    1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
    1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
    1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
    1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
    1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
    1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
    1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
    Summary
    24-Hour Hit Count7-Day Hit Count1-Month Count
    273737
    Metadata
    Metadata
    Assignees
    No one assigned
      Labels
      Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
      Type
      No type
      Projects
      • AppModel
        Status
        No status
      Milestone
      No milestone
      Relationships
      None yet
      Development
      No branches or pull requests
      Issue actions
      
, 'i');
if (__m === '*' || __re.test(location.href)) {
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
      Skip to content
      [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
      Open
      Open
      [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
      Labels
      Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
      Description
      @awakecoding
      awakecoding
      opened on Aug 30, 2026
      Important
      The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
      Build Information
      Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
      
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
      
Pull request: #132922
      KBE authoring guidance (ci-failure-scan)
      • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
      • Build Analysis parses only the single JSON block under Error Message.
      • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
      • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
      • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
      Error Details
      Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

      The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
      Error Message
      {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
      Agentic workflow metadata (ci-failure-scan)
      Workflow artifact: ci-failure-scan
      
Artifact kind: kbe-verification
      
Verified match count: 2 hits in failure.log
      Note
      This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
      Known issue validation
      Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
      Error message validated:[Can not unadvise from empty connection point]
      Result validation: ✅ Known issue matched with the provided build.
      Validation performed at: 8/31/2026 6:08:08 AM UTC
      Report
      BuildRepositoryTestPull Request
      1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
      1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
      1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
      1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
      1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
      1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
      1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
      1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
      1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
      1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
      1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
      1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
      1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
      1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
      1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
      1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
      1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
      1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
      1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
      1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
      1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
      1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
      1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
      1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
      1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
      1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
      1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
      1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
      1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
      1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
      1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
      1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
      1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
      1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
      1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
      1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
      1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
      Summary
      24-Hour Hit Count7-Day Hit Count1-Month Count
      273737
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
        Type
        No type
        Projects
        • AppModel
          Status
          No status
        Milestone
        No milestone
        Relationships
        None yet
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        No branches or pull requests
        Issue actions
        
, 'i');
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
        Skip to content
        [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
        Open
        Open
        [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
        Labels
        Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
        Description
        @awakecoding
        awakecoding
        opened on Aug 30, 2026
        Important
        The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
        Build Information
        Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
        
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
        
Pull request: #132922
        KBE authoring guidance (ci-failure-scan)
        • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
        • Build Analysis parses only the single JSON block under Error Message.
        • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
        • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
        • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
        Error Details
        Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

        The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
        Error Message
        {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
        Agentic workflow metadata (ci-failure-scan)
        Workflow artifact: ci-failure-scan
        
Artifact kind: kbe-verification
        
Verified match count: 2 hits in failure.log
        Note
        This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
        Known issue validation
        Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
        Error message validated:[Can not unadvise from empty connection point]
        Result validation: ✅ Known issue matched with the provided build.
        Validation performed at: 8/31/2026 6:08:08 AM UTC
        Report
        BuildRepositoryTestPull Request
        1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
        1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
        1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
        1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
        1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
        1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
        1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
        1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
        1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
        1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
        1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
        1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
        1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
        1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
        1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
        1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
        1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
        1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
        1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
        1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
        1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
        1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
        1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
        1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
        1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
        1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
        1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
        1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
        1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
        1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
        1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
        1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
        1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
        1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
        1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
        1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
        1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
        Summary
        24-Hour Hit Count7-Day Hit Count1-Month Count
        273737
        Metadata
        Metadata
        Assignees
        No one assigned
          Labels
          Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
          Type
          No type
          Projects
          • AppModel
            Status
            No status
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
          Skip to content
          [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
          Open
          Open
          [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
          Labels
          Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
          Description
          @awakecoding
          awakecoding
          opened on Aug 30, 2026
          Important
          The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
          Build Information
          Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
          
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
          
Pull request: #132922
          KBE authoring guidance (ci-failure-scan)
          • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
          • Build Analysis parses only the single JSON block under Error Message.
          • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
          • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
          • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
          Error Details
          Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

          The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
          Error Message
          {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
          Agentic workflow metadata (ci-failure-scan)
          Workflow artifact: ci-failure-scan
          
Artifact kind: kbe-verification
          
Verified match count: 2 hits in failure.log
          Note
          This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
          Known issue validation
          Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
          Error message validated:[Can not unadvise from empty connection point]
          Result validation: ✅ Known issue matched with the provided build.
          Validation performed at: 8/31/2026 6:08:08 AM UTC
          Report
          BuildRepositoryTestPull Request
          1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
          1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
          1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
          1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
          1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
          1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
          1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
          1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
          1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
          1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
          1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
          1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
          1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
          1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
          1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
          1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
          1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
          1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
          1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
          1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
          1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
          1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
          1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
          1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
          1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
          1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
          1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
          1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
          1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
          1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
          1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
          1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
          1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
          1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
          1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
          1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
          1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
          Summary
          24-Hour Hit Count7-Day Hit Count1-Month Count
          273737
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
            Type
            No type
            Projects
            • AppModel
              Status
              No status
            Milestone
            No milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
            Skip to content
            [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
            Open
            Open
            [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
            Labels
            Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
            Description
            @awakecoding
            awakecoding
            opened on Aug 30, 2026
            Important
            The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
            Build Information
            Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
            
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
            
Pull request: #132922
            KBE authoring guidance (ci-failure-scan)
            • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
            • Build Analysis parses only the single JSON block under Error Message.
            • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
            • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
            • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
            Error Details
            Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

            The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
            Error Message
            {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
            Agentic workflow metadata (ci-failure-scan)
            Workflow artifact: ci-failure-scan
            
Artifact kind: kbe-verification
            
Verified match count: 2 hits in failure.log
            Note
            This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
            Known issue validation
            Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
            Error message validated:[Can not unadvise from empty connection point]
            Result validation: ✅ Known issue matched with the provided build.
            Validation performed at: 8/31/2026 6:08:08 AM UTC
            Report
            BuildRepositoryTestPull Request
            1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
            1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
            1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
            1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
            1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
            1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
            1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
            1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
            1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
            1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
            1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
            1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
            1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
            1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
            1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
            1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
            1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
            1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
            1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
            1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
            1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
            1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
            1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
            1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
            1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
            1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
            1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
            1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
            1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
            1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
            1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
            1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
            1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
            1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
            1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
            1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
            1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
            Summary
            24-Hour Hit Count7-Day Hit Count1-Month Count
            273737
            Metadata
            Metadata
            Assignees
            No one assigned
              Labels
              Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
              Type
              No type
              Projects
              • AppModel
                Status
                No status
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
              Skip to content
              [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
              Open
              Open
              [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
              Labels
              Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
              Description
              @awakecoding
              awakecoding
              opened on Aug 30, 2026
              Important
              The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
              Build Information
              Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
              
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
              
Pull request: #132922
              KBE authoring guidance (ci-failure-scan)
              • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
              • Build Analysis parses only the single JSON block under Error Message.
              • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
              • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
              • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
              Error Details
              Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

              The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
              Error Message
              {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
              Agentic workflow metadata (ci-failure-scan)
              Workflow artifact: ci-failure-scan
              
Artifact kind: kbe-verification
              
Verified match count: 2 hits in failure.log
              Note
              This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
              Known issue validation
              Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
              Error message validated:[Can not unadvise from empty connection point]
              Result validation: ✅ Known issue matched with the provided build.
              Validation performed at: 8/31/2026 6:08:08 AM UTC
              Report
              BuildRepositoryTestPull Request
              1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
              1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
              1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
              1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
              1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
              1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
              1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
              1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
              1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
              1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
              1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
              1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
              1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
              1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
              1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
              1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
              1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
              1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
              1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
              1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
              1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
              1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
              1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
              1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
              1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
              1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
              1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
              1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
              1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
              1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
              1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
              1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
              1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
              1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
              1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
              1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
              1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
              Summary
              24-Hour Hit Count7-Day Hit Count1-Month Count
              273737
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
                Type
                No type
                Projects
                • AppModel
                  Status
                  No status
                Milestone
                No milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
[ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point · Issue #132947 · dotnet/runtime · GitHub
                Skip to content
                [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point #132947
                Open
                Open
                [ci-scan] Test failure: COM Dynamic finalizer double-unadvises connection point#132947
                Labels
                Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
                Description
                @awakecoding
                awakecoding
                opened on Aug 30, 2026
                Important
                The submitting account does not have permission to apply upstream labels. The area label was assigned automatically; a maintainer still needs to add Known Build Error, blocking-clean-ci, os-windows, and arch-x64 for Build Analysis to recognize this issue.
                Build Information
                Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1573972
                
Build error leg or test failing: coreclr windows x64 Checked no_tiered_compilation @ Windows.Amd64.Open.rt - Interop/COM/Dynamic/Dynamic/Dynamic.cmd
                
Pull request: #132922
                KBE authoring guidance (ci-failure-scan)
                • Error Details is for readers. The exception and stack trace below are copied from the Helix console log.
                • Build Analysis parses only the single JSON block under Error Message.
                • ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
                • BuildRetry is false because this is a product/test cleanup race rather than an infrastructure failure.
                • ExcludeConsoleLog is false because the assertion is present in the Helix console log.
                Error Details
                Process terminated.
Assertion failed.
Can not unadvise from empty connection point
at System.Runtime.InteropServices.ComEventsSink.Unadvise() in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 261
at System.Runtime.InteropServices.ComEventsSink.RemoveAll(ComEventsSink sinks) in /_/src/libraries/Common/src/System/Runtime/InteropServices/ComEventsSink.cs:line 50
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.DisposeAll() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 65
at Microsoft.CSharp.RuntimeBinder.ComInterop.ComEventSinksContainer.Finalize() in /_/src/libraries/Microsoft.CSharp/src/Microsoft/CSharp/RuntimeBinder/ComInterop/ComEventSinksContainer.cs:line 71
at System.GC.RunFinalizers()

                The finalizer attempted to call RemoveAll after the event sink had already been unadvised. Build Analysis reports a 0.03% failure rate for this test. The PR that encountered the failure changes NativeAOT/ReadyToRun dependency-analysis tooling and does not modify the runtime, Microsoft.CSharp COM binder, or this test.
                Error Message
                {
"ErrorMessage": "Can not unadvise from empty connection point",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
                Agentic workflow metadata (ci-failure-scan)
                Workflow artifact: ci-failure-scan
                
Artifact kind: kbe-verification
                
Verified match count: 2 hits in failure.log
                Note
                This issue draft was prepared with GitHub Copilot assistance and reviewed before submission.
                Known issue validation
                Build: 🔎https://dev.azure.com/dnceng-public/public/_build/results?buildId=1573972
                Error message validated:[Can not unadvise from empty connection point]
                Result validation: ✅ Known issue matched with the provided build.
                Validation performed at: 8/31/2026 6:08:08 AM UTC
                Report
                BuildRepositoryTestPull Request
                1576377dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132999
                1576312dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132117
                1576150dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
                1576162dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132260
                1575999dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130842
                1575934dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
                1575864dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#129683
                1575857dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132955
                1575846dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132989
                1575801dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132420
                1575198dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132809
                1575681dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
                1575675dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132814
                1575616dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132986
                1575548dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
                1575536dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
                1575506dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132584
                1575486dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132419
                1575479dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132973
                1575468dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132981
                1575443dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132887
                1575423dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#130723
                1575374dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132978
                1575079dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132969
                1575058dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132970
                1574847dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
                1574822dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132787
                1574762dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132965
                1574742dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#131877
                1574661dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132689
                1574647dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132963
                1574588dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132958
                1574574dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132962
                1574571dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132592
                1574555dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132821
                1574299dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132735
                1573972dotnet/runtimeInterop/COM/Dynamic/Dynamic/Dynamic.cmd#132922
                Summary
                24-Hour Hit Count7-Day Hit Count1-Month Count
                273737
                Metadata
                Metadata
                Assignees
                No one assigned
                  Labels
                  Known Build ErrorUse this to report build issues in the .NET Helix tabarea-System.Runtime.InteropServicesblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner
                  Type
                  No type
                  Projects
                  • AppModel
                    Status
                    No status
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions