Why does Opencode ACP agent get stuck with PowerShell process-launch scripts?

Description

The plugin in Rider gets stuck with PowerShell process-launch scripts command like $log, $err, $p, $exe, and $sdk.
Not every time, but often enough it's annoying. I see the animation running and the process never finishes. I have to stop it and type continue.

Is this related to the model being used?

Examples of commands the tool created:

$log="$env:TEMP\graphrag-api.out.log"; $err="$env:TEMP\graphrag-api.err.log"; if(Test-Path $log){Remove-Item $log}; if(Test-Path $err){Remove-Item $err}; $p = Start-Process -FilePath "dotnet" -ArgumentList 'run','--project','src\GraphRag.Api','-c','Debug','--no-build' -WorkingDirectory "C:\inetpub\wwwroot\GraphRagGeneral" -RedirectStandardOutput $log -RedirectStandardError $err -PassThru -WindowStyle Hidden; $p.Id | Set-Content "$env:TEMP\graphrag-api.pid"; "PID=$($p.Id)"

$exe = "C:\inetpub\wwwroot\GraphRagGeneral\src\GraphRag.Api\bin\Debug\net10.0\GraphRag.Api.exe"; $log="$env:TEMP\graphrag-api.out.log"; $err="$env:TEMP\graphrag-api.err.log"; if(Test-Path $log){Remove-Item $log -Force}; if(Test-Path $err){Remove-Item $err -Force}; $p = Start-Process -FilePath $exe -WorkingDirectory "C:\inetpub\wwwroot\GraphRagGeneral\src\GraphRag.Api\bin\Debug\net10.0" -RedirectStandardOutput $log -RedirectStandardError $err -PassThru -WindowStyle Hidden; $p.Id | Set-Content "$env:TEMP\graphrag-api.pid"; "PID=$($p.Id)"

Plugins

Opencode Rider ACP Plugin

OpenCode version

1.18.30

Steps to reproduce

This happens wil all kinds of prompts. I am using .NET apps in Rider in Windows 11. It's been happening for a long time. Rider and the plugin have been updated several times.

I am not sure if changing models helps.

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

I am using Jetbrains Rider