I replaced the hard drive on my Imac then restored it from Time Machine. Now all my previous Folders and Collections are missing. I use two external hard drives to store photos. What am I doing wrong? Attached are three screen shots showing what I'm dealing with. This is only a fraction of photos I have in the LrC Catalog.
"This is only a fraction of photos I have in the LrC Catalog."
Doesn't seem so. Your entire catalog contains only 1799 images, and 'Previous Import' is 1000 images (third screenshot). Almost all the images are from June 2020 or later (second screenshot). That suggests that maybe you made a mistake and created a new catalog, rather than opening the existing one.
I don't recall doing anything except trying to find my Folders and Collections. I may have done something wrong...but don't have a clue. I've managed to find some of them by dragging Folders from external HD into LrC and importing. Could this be the solution...or a mistake?
I didn't import the photos to the new hard drive. But, as I explained, I did drag some folders into LrC trying to try and figure out what to do. The screen shot shows that some files were found by dragging folders into LrC App and importing those photos on the HD named Photos 2TB.
If this was a mistake is there a way to rectify this?
Most of my photos are on the EHD named Samsung T5. All the Folders and Collections are missing except two...Where am I going wrong?
"But, as I explained, I did drag some folders into LrC trying to try and figure out what to do."
This is Importing photos. Importing photos is completely the wrong thing to do here.
You probably need to find the catalog file (or a backup) from before you did this. Then, you simply need to follow these instructions: http://www.computer-darkroom.com/lr2_find_folder/find-folder.htm (see Part 2 — Updating Folder Location). Repeating: Importing in any form, dragging and dropping or synchronizing folders, is completely the wrong thing to do.