Dynamics copied to vocal staves may unexpectedly move when migrating from 4.x #35149

Issue type

Engraving bug (incorrect score rendering)

Description with steps to reproduce

Open the attached test score centred-dynamic.mscz.zip (created in 4.x). The Soprano mf has Center between staves set to On, which in main causes it to draw between the two vocal staves, while in 4.x it would draw above the Soprano staff.

The property has been preserved when copying the dynamic from the piano, which would previously have had no effect for vocal instruments.

I.e., this only affects dynamics on vocal staves that have Center between staves set to On. The Properties panel didn't offer that setting for them in 4.x, but they can carry it, e.g. if the dynamic was copied from a piano part.

Although the situation as first glance may seem quite unlikely, copying back and forth between vocals and piano is a very common operation when engraving e.g. PVG scores.

Supporting files, videos and screenshots

Screen.Recording.2026-10-05.at.16.35.57.mov

In which versions of MuseScore Studio is this issue present?

Nightly main

Regression

No.

Operating system

macOS 26.6.2

Additional context

No response

Checklist

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• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible