I can't synch Photos between iMac and iPad Air. I connect the devises via USB, go to Finder, click on iPad Air, choose to sync all photos, and click Sync. The sync runs very quickly through what seems to be 5 steps, but nothing is sync'ed: Photos on the iMac are missing from the iPad.
iMac: Tahoe 26.3.1 (a)
iPad Air: 27.0.1