MuseScore 3 crashes when removing instrument, MuseScore 4 nightly crashes when closing
This happens with the score at https://musescore.com/user/13065016/scores/3038561
MuseScore-18.104.22.1682125617-x86_64.AppImage crashes when removing the bass clef.
MuseScoreNightly-202011300431-master-722053f-x86_64.AppImage crashes when opening and then closing the score. This version can successfully make the bass clef invisible, but crashes if you try to actually delete it.
(as an aside, version 4 is kind of difficult to learn... where is the "Export to PDF" function, for instance?)