Voltas duplicated if first instrument is invisible.
Create a score with at least 2 instruments
Add voltas to the score (for first staff)
Add voltas for the same measures to instruments below first staff (I used ctrl+click)
Make instrument 1 invisible either in instruments or by "Hide empty staves."
Result: 2 voltas are on the visible staff. In my example I have offset the voltas to make them obvious.
Tested in OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 220.127.116.115183078, revision: 905e64b
|Voltas 3.6RC.mscz||6.56 KB|