Folders missing in Catalog and can't back up either after latest update
Hi everybody,
I am not sure when the latest update happened but now I am missing a number of recent folders in my most recent catalog. Strangely enough, older ones are still there and the latest two are there as well but the ones in between are not. So I tried looking for them and I have saved them on my external hard drive per usual, but for some reason, I can't find them in Lightroom.
So I thought maybe I just look at an earlier version, and then I get asked to back up - and that is not working either (see screenshot). I looked here in the forum, but I can't seem to find the answer. Short of re-importing all those folders and starting work on them again, I am at a loss. Oh, and I have plenty of space ... so not sure why that would be an issue.
Plus of course, the backup not working is not helping as I may lose them again if I don't back up...
Any clever ideas what I can do?

