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Slur lost in full score + volta causes Crash
Issue type
Crash or freeze
Bug description
In parts if you copy/paste 2-measure slur into single measure (before multi-measure rest), this slur will be saved in part only. This broken slur with conjuction of Volta makes Musescore crash if you try to make second instrument visible in parts.
This issue is based on crash report from musescore.org Also maybe related to #21242
Steps to reproduce
Slur lost:
- Create score with two instruments
- Fill one measure with eight notes
- A a few measures fill two measures with quarter notes and add single slur for them
- Open first instrument part and copy slur to measure with eight notes. Adjust slur so it fits well.
- Save, close and open score again
- Slur is lost in main score, but present in part.
Crash
- Add Volta after measure with eight notes
- Go to parts and make second instrument visible
- Crash
Screenshots/Screen recordings
Slur lost:
https://github.com/musescore/MuseScore/assets/919446/935b5c2f-192c-4ca6-ab41-d0006a75ccbc
Crash:
https://github.com/musescore/MuseScore/assets/919446/f85e84f4-db86-4a0c-97b3-b425a89b2323
MuseScore Version
Musescore 4.0.2, 4.2.1, 4.3.0, 4.4.0 master
Regression
I don't know
Operating system
windows 10
Additional context
No response