I seem to crash MuseScore about every 5 minutes by inadvertently control-selecting elements that apparently aren't meant to be control-selected (a note with it's typed chord, or measures I meant to shift-select for example), or copy/pasting things in some way that crashes the program.
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Same remark... Read [[nodetitle:How to report bug or ask for support]]
No response to request for information after more than two weeks. Bug closed.