Multi-measure rest numbers disappear during scrolling
Create a score with multi measure rests, creating a part from an existing score is the easiest way.
Scroll the score so the number on the multi-measure rest disappears at the top or bottom. Notice some of the numbers is either partially or complete gone. Scroll so the rest moves off the side of the screen and the number returns.
Reported version is 3.0 since it's been around at least that long.