> > Hrm, I think for some reason ClrMame stopped doing this, as I had "Hide All"
> on
>
> If Hide all is on, it automatically splits up the parent/clone relationship.

I assure you it wasn't doing this for some reason. I had to put it back on Hide Common. I've been using it for lots and lots of versions and never had this problem before, hence my stupid thread. It just kept rebuilding those Freeze sets to the parent.

>
> > Why it broke so many of my sets is that it probably tried to merge them back
> > into the same file, and didn't backup the file it
>
> Nope. All files are backuped before they get replaced. So most likely you only
> have to run a rebuild on the backup folder to readd them.

I had to download a bunch. If a destination file/zip exists in the backup folder already, what does ClrMame do?