Issue type

Opening/saving issue

Description with steps to reproduce

1. Set nightly 5.0 as default to open .mscz files
2. Open .mscz file

Supporting files, videos and screenshots

video1663836276.mp4

In which versions of MuseScore Studio is this issue present?

OS: macOS Tahoe (26.2), Arch.: arm64, MuseScore Studio version (64-bit): 5.0.0-260325035, revision: github-musescore-musescore-383af2f

Regression

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

Operating system

MacOS Tahoe 26.2

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