Somehow (not quite sure how) I found the pesky folder, have renamed it, opened Lightroom and magically a new plist folder was created. I will now see if Lightroom does not grey out my images as before.
Thanks to all for your patience and help.
In the attached screen shot I display the Adobe preferences in the folder. I don't see any Lightroom ones other than adobe.Adobe-Lightroom-Helper.plist
Is that the one I should rename and then open Lightroom?
Gentlemen, Thank you for your efforts. It's obvious I'm a neophyte in matters software. I do not understand the bowels of LR.
I did manage to find the Preferences folder under Library (screenshot attached )and discovered I have dozens, maybe hundreds, of preferences. Which do I rename? Then...
I went to the backup because I needed to get some images out.
You are correct that it did not fix the issue. Today, most (probably all) my images are greyed out. As i said earlier, I could not find the User Library path you told me to follow. I sent a screen shot of my dead end. Where did I err?
I upgraded to Catalina shortly after it was released.
The Option key worked, I opened a new catalog and successfully imported 4 images. Now how do I return to my original catalog where all my images/edits reside?
Thanks again for your help!
Have been having issues with LR 9.2.1 for a few weeks now. If left open and not saved entire folders are greyed out and upon clicking on a greyed image, the screen says it's loading. It doesn't. I've had to close LR and reopen and then all is well. Today, all is not well: LR does not open at all...