Corruption on duration change of note in measure with local time signature
This actually goes back to 2.1 if not earlier, but was first reported against 2.3.2 in https://musescore.org/en/node/276281
Steps to reproduce:
1) New Score, Grand Staff, 4/4
2) Add local 1/2/8 time signature (Ctrl+drag) to top staff only
3) Enter 5 C 4 C four times to fill measure
4) Select last quarter note C (on beat 10 of 12)
5) Press "."
You can similarly get corruption with a quarter note on beat 9 if you use "W" or "6" to turn it into a half note, so the issue is not specific to the dot command - it's general to any duration change.
It's not any duration change, though, some seem to work OK.