Lost a Score

Apologies for false alarm. When I shut down the Musescore software, I got a message asking me if I wanted to save changes to the score I just entered. So the software HAD SAVED my score, but I just didn't know that. What a relief! I of course clicked "save changes", and when I went to look for the score, there it was listed at the top. [Maybe the software knew it wasn't worth saving, and was trying to tell me that?] But why did it appear to be gone? Going to take some time off before checking for errors again. Apologies. Apologies. Jack Donovan