Crash when batch converting a mscz to a bunch of output files (the last of them is mp3 output)

Issue type

Crash or freeze

Description with steps to reproduce

• Unzip the following file: testscorefails.zip
• Execute: MuseScore4.exe -j testscorefails.json

You get a "Segmentation fault" error.

I have attached the diagnostic file output in the following section

Supporting files, videos and screenshots

• Diagnostic files: diagnosticfiles.zip

What is the latest version of MuseScore Studio where this issue is present?

OS: Windows 11 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.4-243461245, revision: github-musescore-musescore-2232670

Regression

I was unable to check

Operating system

Windows 11

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

Reproduce the crash with MuseScore4.exe -j testscorefails.json after unpacking testscorefails.zip, and inspect diagnosticfiles.zip for clues. Trace the batch conversion path for the sequence ending in MP3 output; done means the supplied job completes without a segmentation fault.