Pipeline instance descriptor is not recreated when it is deleted while the Editor is open and idle

How to reproduce:

1. Create a new project and open it in the Editor
2. Open a terminal and navigate to the project folder
3. Run unity pipeline install
4. Wait for the package to import and the Editor to finish reloading
5. Run unity status and confirm the Editor reports as ready
6. Download the attached "Repro-PipelineDescriptor.ps1" to the project's parent folder
7. Run "powershell -ExecutionPolicy Bypass -File .\Repro-PipelineDescriptor.ps1 -ProjectPath "<full path to project>""
8. Wait for the terminal to prompt for a manual step (about 4 minutes)
9. Focus the Editor
10. Enter Play mode
11. Exit Play mode
12. Return to the terminal and press Enter
13. Observe the recorded observations block, and the log file path printed at the end

Actual result: The descriptor file is never recreated and unity status reports no Editor found (exit 6), while the Editor process stays alive and listening on the port
Expected result: The descriptor file is recreated while the Editor remains open, and unity status continues to reach the running Editor.

Reproducible with: 0.3.0-exp.1 (6000.7.0a6), 0.7.0-exp.1 (6000.7.0a6)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: Reload Domain must be enabled in Enter Play Mode Settings, otherwise Play mode will not restore the descriptor. Restarting the Editor works either way.