roslyn: ArgumentOutOfRangeException from SymbolFinder.FindLinkedSymbolsAsync

Version Used: Version 16.9.0 Preview 1.0 [30613.262.main]

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: span
Actual value was StreamJsonRpc.MessagePackFormatter+RawMessagePack.
      at Microsoft.CodeAnalysis.SyntaxNode.FindNode(TextSpan span, Boolean findInsideTrivia, Boolean getInnermostNodeForTie)
      at Microsoft.CodeAnalysis.FindSymbols.SymbolFinder.<FindLinkedSymbolsAsync>d__9.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 Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<>c__DisplayClass20_1.<<DetermineAllSymbolsCoreAsync>b__0>d.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 Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<DetermineAllSymbolsCoreAsync>d__20.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 Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<DetermineAllSymbolsAsync>d__19.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 Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<FindReferencesAsync>d__8.MoveNext()
   --- End of stack trace from previous location where exception was thrown ---
      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
      at Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<FindReferencesAsync>d__8.MoveNext()
   --- End of stack trace from previous location where exception was thrown ---
      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
      at Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine.<FindReferencesAsync>d__8.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 Microsoft.CodeAnalysis.FindSymbols.SymbolFinder.<FindReferencesAsync>d__34.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 Microsoft.CodeAnalysis.DocumentHighlighting.AbstractDocumentHighlightsService.<GetTagsForReferencedSymbolAsync>d__3.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 Microsoft.CodeAnalysis.DocumentHighlighting.AbstractDocumentHighlightsService.<GetDocumentHighlightsInCurrentProcessAsync>d__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 Microsoft.CodeAnalysis.DocumentHighlighting.AbstractDocumentHighlightsService.<GetDocumentHighlightsAsync>d__0.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 Microsoft.CodeAnalysis.Remote.RemoteDocumentHighlightsService.<>c__DisplayClass2_0.<<GetDocumentHighlightsAsync>b__0>d.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 Microsoft.CodeAnalysis.Remote.BrokeredServiceBase.<RunServiceAsync>d__11`1.MoveNext()
   --- End of stack trace from previous location where exception was thrown ---
      at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
      at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)