Syntax tree doesn't belong to the underlying 'Compilation'

[winscripter]

Version Used: Visual Studio 2026 Insiders [11111.16]

Steps to reproduce:
Simply opening C# source files.

Actual behavior:
VS displays a banner, "Diagnostics analyzer runner has been disabled due to an internal error" and the exception stack trace is as follows:

StreamJsonRpc.RemoteInvocationException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
   at StreamJsonRpc.JsonRpc.<InvokeCoreAsync>d__171`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at Microsoft.CodeAnalysis.Remote.BrokeredServiceConnection`1.<TryInvokeAsync>d__20`1.MoveNext()
RPC server exception:
System.ArgumentException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.VerifyTree(SyntaxTree tree)
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.GetAnalysisResultAsync(SyntaxTree tree, Nullable`1 filterSpan, ImmutableArray`1 analyzers, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.<>c__DisplayClass35_0.<<AnalyzeInProcessAsync>g__GetAnalysisResultAsync|2>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.<>c__DisplayClass35_0.<<AnalyzeInProcessAsync>g__AnalyzeAsync|0>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.AnalyzeInProcessAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzers compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DocumentAnalysisExecutor.<>c__DisplayClass12_0.<<ComputeDiagnosticsInProcessAsync>g__GetAnalysisResultInProcessAsync|1>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DocumentAnalysisExecutor.<>c__DisplayClass12_0.<<ComputeDiagnosticsInProcessAsync>g__GetCompilerAnalyzerDiagnosticsInProcessAsync|2>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DocumentAnalysisExecutor.<>c__DisplayClass12_0.<<ComputeDiagnosticsInProcessAsync>g__GetSyntaxDiagnosticsInProcessAsync|3>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DocumentAnalysisExecutor.ComputeDiagnosticsInProcessAsync(DiagnosticAnalyzer analyzer, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.ComputeDocumentDiagnosticsCoreInProcessAsync(DocumentAnalysisExecutor executor, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.<>c__DisplayClass43_0.<<ComputeDiagnosticsInProcessAsync>g__ComputeDocumentDiagnosticsAsync|0>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.ComputeDiagnosticsInProcessAsync(TextDocument document, Nullable`1 range, ImmutableArray`1 allAnalyzers, ImmutableArray`1 syntaxAnalyzers, ImmutableArray`1 semanticSpanAnalyzers, ImmutableArray`1 semanticDocumentAnalyzers, Boolean incrementalAnalysis, Boolean logPerformanceInfo, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanInProcessAsync(TextDocument document, Nullable`1 range, DiagnosticIdFilter diagnosticIdFilter, Nullable`1 priority, DiagnosticKind diagnosticKind, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, DiagnosticIdFilter diagnosticIdFilter, Nullable`1 priority, DiagnosticKind diagnosticKind, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.RemoteDiagnosticAnalyzerService.<>c__DisplayClass12_0.<<GetDiagnosticsForSpanAsync>b__0>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.<>c__DisplayClass7_0`1.<<RunWithSolutionAsync>g__ProcessSolutionAsync|1>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.RunWithSolutionAsync[T](AssetProvider assetProvider, Checksum solutionChecksum, Boolean updatePrimaryBranch, Func`2 implementation, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.RunWithSolutionAsync[T](AssetProvider assetProvider, Checksum solutionChecksum, Boolean updatePrimaryBranch, Func`2 implementation, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.BrokeredServiceBase.RunWithSolutionAsync[T](Checksum solutionChecksum, Func`2 implementation, CancellationToken cancellationToken)

It's not pleasant since the appearance of the banner causes the entire UI to jump down, causing disruption.

[CyrusNajmabadi]

Fixed with #80422