Prerequisites

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• Make sure you are able to repro it on the latest released version
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• Refer to Differences between Windows PowerShell 5.1 and PowerShell.

Steps to reproduce

Minimal reproducible example for .NET 9 with Microsoft.PowerShell.SDK 7.5.4:

using var pool = RunspaceFactory.CreateRunspacePool(CreateSessionState());
pool.SetMinRunspaces(1);
pool.SetMaxRunspaces(5);
pool.Open();

using var ps = PowerShell.Create();
ps.RunspacePool = pool;

ps.AddScript("Write-Output");
ps.AddStatement();
ps.AddScript("Write-Output");

var result = await ps.InvokeAsync();

Based on the documentation for the InvokeAsync method with no arguments, it doesn't require any setup and should work fine. In fact, if there's only one statement, it works just fine.

Interestingly, the synchronous Invoke method doesn't have any problems with multiple statements and works as expected.

Expected behavior

I would expect it to work similarly to the synchronous `Invoke()` method.

Actual behavior

The call to `InvokeAsync` hangs forever.

Error details

There are no errors.

Environment data

Name                           Value
----                           -----
PSVersion                      7.5.4
PSEdition                      Core
GitCommitId                    7.5.4
OS                             Ubuntu 24.04.1 LTS
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Visuals

No response