After turning on iCloud photo sync, Photos wants to import thousands of "old" photos from my iPhone
After having some negative experiences with Photos and iCloud, I shut it off years ago and just imported photos manually when syncing my phone each day. No problems, but also no access to my photo library via iCloud on my phone. Now, I have the 2TB iCloud plan and after turning on iCloud photo sync, Photos now wants to import thousands of "old" photos from my iPhone - some are 10 years old or older. I don't keep old photos on my phone and am fastidious about importing new photos to Photos on a daily basis (I'm a professional photographer) and then deleting them off my phone. I also delete pics out of Photos that I don't want and then delete the "recently deleted" album contents; but it seems many of the photos that popped up in the monster import list are photos I have already deleted - some years and years ago. How did that happen?
My 5K iMac and iPhone 13 Pro are all synced to Photos (and the sync is current and up to date) and it appears that it's working properly in all other ways, but what's the deal with suddenly having 2,200 old photos appear out of the ether? FWIW I have about 80,000 pix in Photos (about 1.1TB), so why would it need to import anything at all besides the new photos I take? I don't want to import these old pix and then have to deal with duplicates and weeding them back out again - only to maybe have them return again? I can't be the only person experiencing this issue.