Using PowerShell Preview v2021.11.1, PSReadLine throws an error every so often

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues, especially the pinned issues.

Exception report

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Please report on GitHub: https://github.com/PowerShell/PSReadLine/issues/new?template=Bug_Report.yaml
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### Environment
PSReadLine: 2.2.0-beta4
PowerShell: 2021.11.1
OS: Microsoft Windows 10.0.22000
BufferWidth: 230
BufferHeight: 26

Last 63 Keys:

 g e t - m o d u l e Enter
 g e t Backspace Backspace Backspace Backspace Backspace $ p s v e r s i o Tab Enter
 UpArrow . p s Tab Enter
 UpArrow Spacebar | g m Enter
 UpArrow Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace Backspace g i t q Backspace Tab Enter


### Exception

System.Management.Automation.PSInvalidOperationException: The pipeline was not run because a pipeline is already running. Pipelines cannot be run concurrently.
   at System.Management.Automation.Runspaces.PipelineBase.DoConcurrentCheck(Boolean syncCall, Object syncObject, Boolean isInLock)
   at System.Management.Automation.Runspaces.RunspaceBase.DoConcurrentCheckAndAddToRunningPipelines(PipelineBase pipeline, Boolean syncCall)
   at System.Management.Automation.Runspaces.PipelineBase.CoreInvoke(IEnumerable input, Boolean syncCall)
   at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input)
   at System.Management.Automation.PowerShell.Worker.ConstructPipelineAndDoWork(Runspace rs, Boolean performSyncInvoke)
   at System.Management.Automation.PowerShell.Worker.CreateRunspaceIfNeededAndDoWork(Runspace rsToUse, Boolean isSync)
   at System.Management.Automation.PowerShell.CoreInvokeHelper[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.CoreInvoke[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.Invoke[T](IEnumerable input, PSInvocationSettings settings)
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Utility.PowerShellExtensions.InvokeAndClear[TResult](PowerShell pwsh, PSInvocationSettings invocationSettings) in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Utility\PowerShellExtensions.cs:line 50
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousPowerShellTask`1.ExecuteNormally(CancellationToken cancellationToken) in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousPowerShellTask.cs:line 120
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousPowerShellTask`1.Run(CancellationToken cancellationToken) in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousPowerShellTask.cs:line 55
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousTask`1.ExecuteSynchronously(CancellationToken executorCancellationToken) in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousTask.cs:line 104
--- End of stack trace from previous location ---
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Execution.SynchronousTask`1.get_Result() in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Execution\SynchronousTask.cs:line 60
   at Microsoft.PowerShell.EditorServices.Services.PowerShell.Host.PsesInternalHost.OnPowerShellIdle(CancellationToken idleCancellationToken) in D:\a\1\s\src\PowerShellEditorServices\Services\PowerShell\Host\PsesInternalHost.cs:line 832
   at Microsoft.PowerShell.PSConsoleReadLine.ReadKey()
   at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
   at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)

Screenshot

Environment data

PS Version: 7.2.0
PS HostName: Visual Studio Code Host
PSReadLine Version: 2.2.0-beta4
PSReadLine EditMode: Windows
OS: 10.0.22000.1 (WinBuild.160101.0800)
BufferWidth: 230
BufferHeight: 26PowerShell Preview
v2021.11.1

Steps to reproduce

On my system.

Starting VSCode, using the Windows Store Powershell or Powershell preview installation. Using the PowerShell Preview v2021.11.1 extension.

Without doing anything the error provided will pop up every now and then. (writing this generated 5 errors already) Just having the It breaks any running scripts I have going.

Using the normal PowerShell extension everything works fine.

Expected behavior

No PSreadline errors while using the PowerShell Preview v2021.11.1 extension.

Actual behavior

I’m unable to use the PowerShell Preview v2021.11.1 extension because of this PSReadline error happening a couple of time every few minute.

[StevenBucher98]

Az.Tools.Predictor 1.0 GA’d and should no longer be one of the causes of this issue. Probably other cases that might trigger this so not entirely fixed. There is work arounds linked above

[daxian-dbw]

@andschwa The fix will be tricky. Please take a look at my comment about the problem: https://github.com/PowerShell/PSReadLine/pull/1679#issuecomment-947940473

We have https://github.com/PowerShell/PowerShellEditorServices/issues/1591 tracking the issue.