Thank you very much all folks for replying! Sorry, I'm 74 years old and with long covid, and bad hands. It takes along time for me to enter & voice doesn't work for me.
Info: M2 Mac Mini Pro (2023) 16GB, running MacOS Sequoia 15.4 when I originally sent this. (Now 15.4.1).
999.64GB on the HD, 803GB free.
When I noticed this a few days ago, no photos had been entered into the Mac mini since November 2024. That was right before I got Covid and long covid, but I don't recall anything unusual.
The issue that caused my notice was I received a message on my iPhone, but not on my Mac mini that had a jpg photo on my Greatgrandparents/grandparents headstone. I tried to save it and nothing happened with any messages from the iPhone that it had been saved, so I tried airdrop from iPhone to Mac mini, and that got the photo to the desktop. From there I attempted to copy into Photos in the dock, and nothing happened and I realized that some other photos I had taken with the iPhone were not in Photos, and saw that it was about 4000 photos and 6 months out of fate (nothing after November 2024.)
I just attempted (17 Apr 1930 EDT)to save this jpeg photo of the headstone from my iPhone (From Messages there to Save and have a message that the phot has already been saved to my iCloud Photo Library. I have no idea where that library is, or how to access it.)
Today, opening Photos from the dock, it has "Utilities" with 7 albums in collections, specifically: duplicates, receipts, handwriting, illustrations, recently viewed, documents, and imported; with about 4 to 400 photos in each; no videos. At the time of my original message, it had about 26k & 1500 or so videos. My iPhone SE (2022) has 30651 photos & about 1500 videos. My new iPad 10th Generation (64GB,IOS 18.4)(purchased and opened four days ago has 30651 photos & 1977 videos. That iPad replaced an iPad 5th Generation (32GB, which has 30100 photos, 12000 "recovered photos" in a different album.
My iCloud Drive shows no photos.
The finder Ribbon shows "Pictures" with a series of various jpeg photos and a PhotosLibrary.photoslibrary with 20.35GB updated today, AND a PhotosLibrary1.photoslibrary with 14.42GB updated today.
Any help you can give this, I greatly appreciate it.
Chuck