I somehow accidentally selected all my pictures and gave them a 3 star rating... Argl. I lost all my previous work on rating pictures.
I can recover a backup, but then lose all work I've done since then. Is there any other way? Ctrl+Z isn't going back far enough to heal this.
I think there's no other way to recover from a backup.
How often do you make a backup? I'll backup my catalog every time Lightroom is closed. I cancel the backup only when I don't made any changes in Lightroom.
I have some scripts written for someone else who did the same thing. Contact me via a forum message or via my web site (in my profile).