MuseScore4 hangs

I am doing something wrong, but have been unable to understand what it is. About every five or six minutes when editing a score, MuseScore4 hangs up and does not recover even after a several-minute wait. I have to exit, restart, and therefore lose my work.

It Amazing Grace - Ron Drotos 5 Variations Lesson 13.mscz often occurs when entering text or other rather detailed items.