Roman numeral labels move to first beat of the measure when exporting to MusicXML

[andreamaria810]

Issue type

Import/export issue

Description with steps to reproduce

1. A score featuring a solo instrument with a dedicated staff, accompanied by a piano part on a grand staff below.
2. Annotated Roman numeral labels below the grand staff (sometimes in the middle, below the right hand staff if there are rests in the left hand staff)
3. Export file to MusicXML
4. Chord labels end up snapping to the first beat of the measure (or disappear entirely in some cases). See attached photo.

Supporting files, videos and screenshots

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

4.4.4

Regression

I was unable to check

Operating system

Windows 11

Additional context

I read in #23240 that some other folks are encountering a similar issue. However, I've seen nothing regarding the labels relocating to the first beat of the measure.

This causes problems for me as I'm creating a data frame with chord labels and their corresponding onset/offset times. This error causes all the chords in said measure to be zero-duration, that is, the onset and offset times are equal. It occurs randomly across most the files in my dataset.

Checklist

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• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
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• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible