I lost all my edits in one folder after updating from Catalina to Big Sur (Mac). How to recover?
I updated my OS from Catalina to Big Sur last night and lost all my edits in one folder -- the last batch I was working on before doing the OS update. Prior to the OS update, to create room on my hard drive, I deleted the Preview and Smart Preview files, knowing that LR would recreate them. But for these images it's NOT recreating them, I don't know why. I really don't want to redo all that work. What happened here? I have not moved the images.
What I did do before deleting the preview files was to copy them (and the whole catalog) over to my Backup external hard drive... just in case. Is there any way I could link the current images that are missing the edits with the backed-up Previews file? If so, how?
Another issue to consider is that because of the OS update, Lightroom renamed my catalog from v2 to v3 (it's done this renaming before, when I did my last OS upgrade). But now this means that my current catalog and the backed-up previews for it have different names. How to deal with this?
I hope there's an easy solution to these missing edits. Would appreciate advice and solutions. Your help is most appreciated. Thank you.
