Stray dot after deleting dotted quarter note
Open a new musescore project. Set the meter to 6/8. Create two voices. Have the top voice be resting the entire measure ie. dotted half rest. In the bottom voice notate a dotted quarter note and then delete the note. There should be a stray dot remaining. It's a relatively minor issue as you are able to select the dot and delete it but it's an issue nonetheless.