Structure search error

• There is a 1 in 10 chance that you will be misjudged when using this code to find an end city：

 private static List<BlockPos> locateStructure(Seed seed, Feature feature, EndCityMode endCityMode, BlockPos center, int radius, int maxResults) {
 Dimension dimension = getDimension(feature);
 MCVersion mcVersion = seed.version;
 Structure<?, ?> structure = getStructure(feature, mcVersion);
 if (structure == null) return null;
 BiomeSource biomeSource = BiomeSource.of(dimension, mcVersion, seed.seed);
 if (!structure.isValidDimension(biomeSource.getDimension()))
 return null;
 List<BPos> structurePos = locateStructures(structure, new BPos(center.getX(), center.getY(), center.getZ()), endCityMode, radius, maxResults, new ChunkRand(), biomeSource, TerrainGenerator.of(biomeSource));

 return toBlockPosList(structurePos);
 }

private static List<BPos> locateStructures(Structure<?, ?> structure, BPos center, EndCityMode endCityMode, int radius, int maxResults, ChunkRand chunkRand, BiomeSource source, TerrainGenerator terrainGenerator) {
 List<BPos> result = new ArrayList<>();
 if (structure instanceof EndCity endCity) {
 SpiralIterator<CPos> spiralIterator = new SpiralIterator<>(new CPos(center.getX() >> 4, center.getZ() >> 4), new CPos(radius, radius), (x, y, z) -> new CPos(x, z));

 StreamSupport.stream(spiralIterator.spliterator(), false)
 .filter(cPos -> {
 com.seedfinding.mcfeature.Feature.Data<?> data = endCity.at(cPos.getX(), cPos.getZ());
 EndCityGenerator endCityGenerator = new EndCityGenerator(source.getVersion());
 return data.testStart(source.getWorldSeed(), chunkRand)
 && data.testBiome(source)
 && data.testGenerate(terrainGenerator)
 && switch (endCityMode) {
 case OnlyHasShip -> endCityGenerator.generate(terrainGenerator, cPos) && endCityGenerator.hasShip();
 case OnlyNotShip -> endCityGenerator.generate(terrainGenerator, cPos) && !endCityGenerator.hasShip();
 case Both -> endCityGenerator.generate(terrainGenerator, cPos);
 };
 })
 .limit(maxResults)
 .forEach(cPos -> result.add(cPos.toBlockPos().add(9, 0, 9)));
 } else if (structure instanceof RegionStructure<?, ?> regionStructure) {
 int chunkInRegion = regionStructure.getSpacing();
 int regionSize = chunkInRegion * 16;

 final int border = 30_000_000;
 SpiralIterator<RPos> spiralIterator = new SpiralIterator<>(center.toRegionPos(regionSize), new BPos(-border, 0, -border).toRegionPos(regionSize), new BPos(border, 0, border).toRegionPos(regionSize), 1, (x, y, z) -> new RPos(x, z, regionSize));


 StreamSupport.stream(spiralIterator.spliterator(), false)
 .map(rPos -> regionStructure.getInRegion(source.getWorldSeed(), rPos.getX(), rPos.getZ(), chunkRand))
 .filter(Objects::nonNull)
 .filter(cPos -> (regionStructure.canSpawn(cPos, source)) && (terrainGenerator == null || regionStructure.canGenerate(cPos, terrainGenerator)))
 .limit(maxResults)
 .forEach(cPos -> result.add(cPos.toBlockPos().add(9, 0, 9)));
 } else {
 if (structure instanceof Stronghold strongholdStructure) {
 CPos currentChunkPos = center.toChunkPos();
 int squaredDistance = Integer.MAX_VALUE;


 for (CPos stronghold : strongholdStructure.getAllStarts(source, chunkRand)) {
 if (result.size() >= maxResults) {
 break;
 }
 int newSquaredDistance = (currentChunkPos.getX() - stronghold.getX()) * (currentChunkPos.getX() - stronghold.getX()) + (currentChunkPos.getZ() - stronghold.getZ()) * (currentChunkPos.getZ() - stronghold.getZ());
 if (newSquaredDistance < squaredDistance) {
 squaredDistance = newSquaredDistance;
 result.clear();
 result.add(stronghold.toBlockPos().add(9, 0, 9));
 }
 }
 } else if (structure instanceof Mineshaft mineshaft) {
 SpiralIterator<CPos> spiralIterator = new SpiralIterator<>(new CPos(center.getX() >> 4, center.getZ() >> 4), new CPos(radius, radius), (x, y, z) -> new CPos(x, z));

 StreamSupport.stream(spiralIterator.spliterator(), false)
 .filter(cPos -> {
 com.seedfinding.mcfeature.Feature.Data<Mineshaft> data = mineshaft.at(cPos.getX(), cPos.getZ());
 return data.testStart(source.getWorldSeed(), chunkRand) && data.testBiome(source) && data.testGenerate(terrainGenerator);
 })
 .limit(maxResults)
 .forEach(cPos -> result.add(cPos.toBlockPos().add(9, 0, 9)));
 }
 }

 return result;
 }


 private static Dimension getDimension(Feature feature) {
 return switch (feature) {
 case buried_treasure -> Dimension.OVERWORLD;
 case mansion -> Dimension.OVERWORLD;
 case stronghold -> Dimension.OVERWORLD;
 case nether_fortress -> Dimension.NETHER;
 case ocean_monument -> Dimension.OVERWORLD;
 case bastion_remnant -> Dimension.NETHER;
 case slime_chunk -> Dimension.OVERWORLD;
 case village -> Dimension.OVERWORLD;
 case mineshaft -> Dimension.OVERWORLD;
 case end_city -> Dimension.END;
 case desert_pyramid -> Dimension.OVERWORLD;
 default -> Dimension.OVERWORLD;
 };
 }

 private static boolean checkIfInDimension(Dimension dimension) {
 return switch (dimension) {
 case OVERWORLD -> (PlayerUtils.getDimension() == meteordevelopment.meteorclient.utils.world.Dimension.Overworld);
 case NETHER -> (PlayerUtils.getDimension() == meteordevelopment.meteorclient.utils.world.Dimension.Nether);
 case END -> (PlayerUtils.getDimension() == meteordevelopment.meteorclient.utils.world.Dimension.End);
 };
 }

 private static Structure<?, ?> getStructure(Feature feature, MCVersion version) {
 return switch (feature) {
 case buried_treasure -> new BuriedTreasure(version);
 case mansion -> new Mansion(version);
 case stronghold -> new Stronghold(version);
 case nether_fortress -> new Fortress(version);
 case ocean_monument -> new Monument(version);
 case bastion_remnant -> new BastionRemnant(version);
 case end_city -> new EndCity(version);
 case village -> new Village(version);
 case mineshaft -> new Mineshaft(version);
 case desert_pyramid -> new DesertPyramid(version);
 default -> null;
 };
 }
 
 private static List<BlockPos> toBlockPosList(List<BPos> posList) {
 List<BlockPos> blockPosList = new ArrayList<>();
 for (BPos pos : posList) {
 blockPosList.add(new BlockPos(pos.getX(), pos.getY(), pos.getZ()));
 }
 return blockPosList;
 }

Seed: -3396536410594980164, Location: -3428 60-13070.

Judging from the seedMap, the location below 1.18.2 will refresh the end city, but above 1.18.2 is useless, I also tried to change the MCVersion of BiomeSource, but the result remains the same, so I suspect that it is an API problem.