Peter: I have a question about this as well that's...semi-urgent. I've been doing a lot of work with km and AS in the last week. An hour ago or so, I noticed I was missing a group. I haven't backed up in a few days. (I use syncing for purposes of backup only).
I was relieved to read your post above (I do realize the last post in the above string was 10 months ago), followed your instructions and wound up saving the lost group (Turns out, it accidentally deleted somehow).
It was at this juncture that my problems began as I tried to revert back to my most recent work. This latter problem was due to my quit and restart of editor--and then, quit and restart yet again (I think what happened was, I wasn't sure, did Editor actually quit and so, I quit/launched more than once). To complicate things further, something happened out of my control that caused editor to quit again (after I copied the group to the clipboard) and so, I relaunched yet again.
It's 45 minutes after midnight and so, in the end, I was able to revert back to yesterday which saved most but not all of my work. I was able to paste the group back in.
So: The loss isn't catastrophic but some work was lost. It became really confusing, do I revert back to last revert or last launch or what.
If you happen to be reading posts at this hour (I have n o idea what time it is in Australia) I'd be grateful if you had any suggestions to restore the lost work. There are no other backups.