Hints throw exception

[0101]

devenv.exe Error: 0 : Visual F# Tools: exception swallowed and not passed to Roslyn: System.ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length
   at System.String.Substring(Int32 startIndex, Int32 length)
   at Microsoft.VisualStudio.FSharp.Editor.Hints.InlineParameterNameHints.getSourceTextAtRange(SourceText sourceText, Range range) in C:\code\fsharp\vsintegration\src\FSharp.Editor\Hints\InlineParameterNameHints.fs:line 70
   at Microsoft.VisualStudio.FSharp.Editor.Hints.InlineParameterNameHints.argumentNames@112.Invoke(Range range)
   at Microsoft.FSharp.Collections.Internal.IEnumerator.map@99.DoMoveNext(b& curr) in C:\code\fsharp\src\FSharp.Core\seq.fs:line 102
   at Microsoft.FSharp.Collections.Internal.IEnumerator.MapEnumerator`1.System.Collections.IEnumerator.MoveNext() in C:\code\fsharp\src\FSharp.Core\seq.fs:line 84
   at Microsoft.FSharp.Collections.Internal.IEnumerator.map2@134.DoMoveNext(c& curr) in C:\code\fsharp\src\FSharp.Core\seq.fs:line 136
   at Microsoft.FSharp.Collections.Internal.IEnumerator.MapEnumerator`1.System.Collections.IEnumerator.MoveNext() in C:\code\fsharp\src\FSharp.Core\seq.fs:line 84
   at Microsoft.FSharp.Collections.Internal.IEnumerator.choose@211.System.Collections.IEnumerator.MoveNext() in C:\code\fsharp\src\FSharp.Core\seq.fs:line 222
   at Microsoft.FSharp.Collections.SeqModule.ToList[T](IEnumerable`1 source) in C:\code\fsharp\src\FSharp.Core\seq.fs:line 974
   at Microsoft.VisualStudio.FSharp.Editor.Hints.InlineParameterNameHints.getHintsForMemberOrFunctionOrValue(SourceText sourceText, FSharpParseFileResults parseResults, FSharpMemberOrFunctionOrValue symbol, FSharpSymbolUse symbolUse) in C:\code\fsharp\vsintegration\src\FSharp.Editor\Hints\InlineParameterNameHints.fs:line 120
   at Microsoft.VisualStudio.FSharp.Editor.Hints.HintService.Pipe #4 input at line [email protected](FSharpSymbolUse symbolUse)
   at Microsoft.FSharp.Collections.Internal.IEnumerator.map@99.DoMoveNext(b& curr) in C:\code\fsharp\src\FSharp.Core\seq.fs:line 102
   at Microsoft.FSharp.Collections.Internal.IEnumerator.MapEnumerator`1.System.Collections.IEnumerator.MoveNext() in C:\code\fsharp\src\FSharp.Core\seq.fs:line 84
   at Microsoft.FSharp.Core.CompilerServices.RuntimeHelpers.takeOuter@320.Invoke(Unit unitVar0) in C:\code\fsharp\src\FSharp.Core\seqcore.fs:line 320
   at Microsoft.FSharp.Core.CompilerServices.RuntimeHelpers.takeInner@314.Invoke(Unit unitVar0) in C:\code\fsharp\src\FSharp.Core\seqcore.fs:line 314
   at Microsoft.FSharp.Core.CompilerServices.RuntimeHelpers.takeInner@314.Invoke(Unit unitVar0) in C:\code\fsharp\src\FSharp.Core\seqcore.fs:line 314
   at Microsoft.FSharp.Collections.SeqModule.ToList[T](IEnumerable`1 source) in C:\code\fsharp\src\FSharp.Core\seq.fs:line 974
   at Microsoft.VisualStudio.FSharp.Editor.Hints.HintService.getHintsForDocument@62-2.Invoke(Tuple`2 _arg1) in C:\code\fsharp\vsintegration\src\FSharp.Editor\Hints\HintService.fs:line 66
   at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b](AsyncActivation`1 ctxt, b result1, FSharpFunc`2 userCode) in C:\code\fsharp\src\FSharp.Core\async.fs:line 528
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.Document-GetFSharpParseAndCheckResultsAsync@169-3.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.FSharpChecker-ParseAndCheckDocumentWithPossibleStaleResults@80-13.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.parseAndCheckFile@40-2.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.parseAndCheckFile@39-3.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.FSharpChecker-ParseAndCheckDocumentWithPossibleStaleResults@79-14.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.FSharpChecker-ParseAndCheckDocumentWithPossibleStaleResults@32-15.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.FSharpChecker-ParseAndCheckDocumentWithPossibleStaleResults@31-16.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.CheckerExtensions.FSharpChecker-ParseAndCheckDocumentWithPossibleStaleResults@29-17.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.Document-GetFSharpParseAndCheckResultsAsync@167-5.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.Document-GetFSharpCompilationOptionsAsync@113-1.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.WorkspaceExtensions.Document-GetFSharpParseAndCheckResultsAsync@166-6.Invoke(AsyncActivation`1 ctxt)
   at Microsoft.VisualStudio.FSharp.Editor.Hints.HintService.getHintsForDocument@59-4.Invoke(AsyncActivation`1 ctxt)
   at <StartupCode$FSharp-Editor>.$RoslynAdapter.Pipe #1 input at line [email protected](AsyncActivation`1 ctxt)
   at <StartupCode$FSharp-Editor>.$RoslynAdapter.Pipe #1 input at line [email protected](AsyncActivation`1 ctxt)
   at Microsoft.FSharp.Control.Trampoline.Execute(FSharpFunc`2 firstAction) in C:\code\fsharp\src\FSharp.Core\async.fs:line 112