hi i was working on a track when all the objects disappeared. i went to the undo button incase i had deleted by mistake and nothing happened as i had a back up copy i thought it would be ok. only my backup copy has disappeared to any ideas why this happened
Difficult to give an explanation. What issue of MMM have you?
Is the backup copy a personal backup you did or a backup file automaticaly made by MMM?
Nota : MMM makes every x minutes (10 perhaps by default, adjustable in the program parameters) an automatic backup which is stored in a file whose name is xxxxxBAKn.MM_
xxxxx is the name of your project,
n an increment,
MM_ the extension.
Perhaps you can get a recovery from one of these points.