Crashes
So I am working on a percussion ensemble piece, and Musescore crashed. I opened up the application again after it crashed, and my unsaved work was gone, which is a real shame because I have been working on it for hours.
There are also weird vertical black lines in random places on my score. Not sure where in the heck they came from.
Comments
See https://musescore.org/en/node/52116 for info on recovering from a backup.
As for black lines, you'd need to attach the score in order for us to know what you mean.