I’ve already had to try a full scan. When the error occurs, the only way I can stop Firefly is to kill the process in the Activity Monitor. When I restart Firefly, the database is empty so it starts a full scan.
I’ve tried deleting all the files in the Application Support folder (conf, log, db, db-journal), but the same thing happens. Out of a library of 12323 songs, the problem occurs around the 10700 songs mark.