NOnion.UnsuccessfulIntroductionException crash when funder trying to pay in NOnion-based LN channel

[knocte]

NOnion.UnsuccessfulIntroductionException: Unsuccessful introduction: Failure
  at <StartupCode$NOnion>.$TorServiceClient+introduceJob@483-1.Invoke (NOnion.Cells.Relay.RelayIntroduceAck _arg25) [0x0001f] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b] (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] userCode, b result1) [0x00005] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:416 
  at NOnion.FSharpUtil+WithTimeout@59-4[R].Invoke (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt) [0x00000] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.Trampoline.Execute (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] firstAction) [0x00020] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:109 
--- End of stack trace from previous location where exception was thrown ---

  at Microsoft.FSharp.Control.AsyncResult`1[T].Commit () [0x00012] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:349 
  at Microsoft.FSharp.Control.AsyncPrimitives.RunSynchronouslyInCurrentThread[a] (System.Threading.CancellationToken cancellationToken, Microsoft.FSharp.Control.FSharpAsync`1[T] computation) [0x0001c] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:882 
  at Microsoft.FSharp.Control.AsyncPrimitives.RunSynchronously[T] (System.Threading.CancellationToken cancellationToken, Microsoft.FSharp.Control.FSharpAsync`1[T] computation, Microsoft.FSharp.Core.FSharpOption`1[T] timeout) [0x00013] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:890 
  at Microsoft.FSharp.Control.FSharpAsync.RunSynchronously[T] (Microsoft.FSharp.Control.FSharpAsync`1[T] computation, Microsoft.FSharp.Core.FSharpOption`1[T] timeout, Microsoft.FSharp.Core.FSharpOption`1[T] cancellationToken) [0x00061] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:1154 
  at Program.PerformOperation (System.Collections.Generic.IEnumerable`1[T] activeAccounts) [0x001cc] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:404 
  at Program.ProgramMainLoop[a] () [0x000cd] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:483 
  at Program.NormalStartWithNoParameters () [0x00007] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:494 
NOnion.UnsuccessfulIntroductionException: Unsuccessful introduction: Failure
  at <StartupCode$NOnion>.$TorServiceClient+introduceJob@483-1.Invoke (NOnion.Cells.Relay.RelayIntroduceAck _arg25) [0x0001f] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b] (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] userCode, b result1) [0x00005] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:416 
  at NOnion.FSharpUtil+WithTimeout@59-4[R].Invoke (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt) [0x00000] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.Trampoline.Execute (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] firstAction) [0x00020] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:109 
--- End of stack trace from previous location where exception was thrown ---

  at GWallet.Backend.Infrastructure.Report (System.Exception ex, SharpRaven.Data.ErrorLevel _arg1) [0x00019] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:135 
  at GWallet.Backend.Infrastructure.LogOrReportCrash (System.Exception ex) [0x00000] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:152 
  at Program.NormalStartWithNoParameters () [0x00017] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:498 
  at Program.main (System.String[] argv) [0x0002b] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:516 
exception inside UnhandledException handler: (null) assembly:/Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/bin/Debug/NOnion.dll type:UnsuccessfulIntroductionException member:(null)

[ERROR] FATAL UNHANDLED EXCEPTION: NOnion.UnsuccessfulIntroductionException: Unsuccessful introduction: Failure
  at <StartupCode$NOnion>.$TorServiceClient+introduceJob@483-1.Invoke (NOnion.Cells.Relay.RelayIntroduceAck _arg25) [0x0001f] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvokeNoHijackCheck[a,b] (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt, Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] userCode, b result1) [0x00005] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:416 
  at NOnion.FSharpUtil+WithTimeout@59-4[R].Invoke (Microsoft.FSharp.Control.AsyncActivation`1[T] ctxt) [0x00000] in <0fe70686c583a2207475c1fd3a5faac6>:0 
  at Microsoft.FSharp.Control.Trampoline.Execute (Microsoft.FSharp.Core.FSharpFunc`2[T,TResult] firstAction) [0x00020] in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:109 
--- End of stack trace from previous location where exception was thrown ---

  at GWallet.Backend.Infrastructure.Report (System.Exception ex, SharpRaven.Data.ErrorLevel _arg1) [0x00019] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:135 
  at GWallet.Backend.Infrastructure.LogOrReportCrash (System.Exception ex) [0x00000] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:152 
  at Program.NormalStartWithNoParameters () [0x00017] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:498 
  at Program.main (System.String[] argv) [0x0002b] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Frontend.Console/Program.fs:516 
  at GWallet.Backend.Infrastructure.Report (System.Exception ex, SharpRaven.Data.ErrorLevel _arg1) [0x00019] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:135 
  at GWallet.Backend.Infrastructure.LogOrReportCrash (System.Exception ex) [0x00000] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:152 
  at GWallet.Backend.Infrastructure.OnUnhandledException (System.Object _arg1, System.UnhandledExceptionEventArgs args) [0x0000e] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:166 
  at GWallet.Backend.Infrastructure+SetupExceptionHook@183-4.Invoke (System.Object delegateArg0, System.UnhandledExceptionEventArgs delegateArg1) [0x00000] in /Users/knocte/Documents/Code/geewalletLN/src/GWallet.Backend/Infrastructure.fs:183