MuseScore crashes within 10 seconds after its launching when the default score is closed and MIDI output is set

• Apr 22, 2021 - 03:50

How to reproduce this issue:
- In MuseScore Preferences, click on I/O tab and set MIDI input/output.
- Close MuseScore.
- Open MuseScore again and close the default score before 10 seconds.
- MuseScore will crash and the MuseScore Crash Reporter will show up.

When the default score is not closed, after about 10 seconds, MuseScore sends some MIDI data to MIDI output. However, I don't know if this can be related.

I can provide more details if you tell me where to collect more data on this issue.


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