Score becomes corrupted with irregular measures

[jonarnoldmusic]

Issue type

File corruption

Description with steps to reproduce

I created a file with monophonic chant, go it the way I wanted, and created a PDF (chantsGerman.pdf). When I reopened, it was corrupted. I fixed one measure, saved, and it became corrupted again. Some measures (1,6, and 8) are correct.

chantsGerman.zip

See forum post here. JoJo thought it might be due to deleting the time signature, but I did not. It was hidden in staff properties.

For context, these lines of chant will be inserted in between measures of polyphony that is metrical.

Supporting files, videos and screenshots

see PDFs

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

4.4

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

[jonarnoldmusic]

I was able to redo the file manually without any corruption. I'm not sure what I did differently, unfortunately. Hopefully, the files will be helpful.

chantsGermanRedo.zip