View resets to top of page during playback

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Continuous view in MS
2. Scroll to somewhere below the top of the score (i.e. strings)
3. Play
4. Once the playback reaches the end of the screen, it occasionally resets to the top of the screen

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/01c4954f-b59e-4dc7-8baa-23d1ae571e9f

In which versions of MuseScore Studio is this issue present?

4.6.3

Regression

No.

Operating system

Windows 11

Additional context

It also occurs most of the time if you are scrolling the score during playback when the playback reaches the right edge of the screen, but it's most annoying when it does it randomly as shown in the above video.

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 issue in MuseScore Studio 4.6.3 on Windows 11 using Continuous view: scroll below the top, start playback, and observe behavior when playback reaches the screen edge. Trace the playback auto-scroll and score-view positioning logic; done means playback no longer unexpectedly resets the view to the top, including while scrolling during playback.