Measure Numbers gone wild
I set a negative offset to a measure number. Then I added a crescendo in a measure after the measure with the newly set number. As an effect, the measure numbers started to show a wrong count, decreasing further every time the crescendo is changed. If the complete view is updated, the numbers will show a correct count again. Switching the focus away from MuseScore and back to it again is enough to fix the view.
I added an example that shows the buggy numbers.