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Mayday #152 - Catalogs and re-importing pix after delete and reinstall LR Classic


Jul 3, 2015
Lightroom Experience
Lightroom Version
Lightroom Classic version: 9.2 [ 202001311240-2d026470 ]
Operating System
macOS 10.15 Catalina
Trying to make it quick. I've had LR Classic a few years. I have the current model. Just deleted all pix and then whole LR setup and reinstalled from Adobe. Then imported all pix from a CCC backup. 23,500 pictures. Seems to have worked ok. But it said current LR Classic catalog not play well with older catalogs, so it made a new Catalog-3.

Now, can I delete the older catalogs 1 and 2 and their support folders? Like, which of these (below) must I now keep, and which may be deleted?

Screen Shot 2020-04-12 at 032651.jpg

Would very much appreciate any help. There may be other problems that I haven't discovered yet.

Thanks in advance --

PS The problems started when I decided to try out Mylio, which seemed to really screw things up, move photos, etc. Baffled me. So it was in the recovery from that when I deleted all pictures in LR Classic and then LR Classic itself, and started over from a new download install from Adobe. And the "import" of pix from CCC backup. I have several recent backups of all photos in CCC and Time Machine.