It seems like I'm not the only person to have had this issue and variations of this have been ongoing for years - I have read through RickyRickster's forum on this subject as well as Phillip Foster's, however my problem seems to be slightly different. But Musescore 3(.6.2) decided to crash and prompted me to close the software. When I opened the score back up again it was fine by when I tried to close Musescore again it asked me if I wanted to save, and when I did the score would open up blank as presented below. There doesn't seem to be a backup file available and when I attempted the 7zip solution it replied with an error message. I'm not great with file behavior and programming, etc., So any clarification on how to solve this issue would be appreciated.