Scanning audio plugins window doesn't appear on MacOS (4.7 nightly only)

[DmitryArefiev]

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Revert to factory settings. Scanning audio plugins window should appear after Restart

Supporting files, videos and screenshots

Screen.Recording.2025-10-15.at.14.47.24.mov

In which versions of MuseScore Studio is this issue present?

4.7.0-252880320

Doesn't occur in 4.6.3 nightly

Regression

Yes, this works in the latest released version and is broken in the nightly builds

Operating system

macOS

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

[cbjeukendrup]

Fixed by last commit of #30533, @DmitryArefiev please confirm

[DmitryArefiev]

Yes, looks good in 4.7 master (tested 4.7.0-253420331 on Win10/macOS13)