Most of my photos disappeared from iPhone and iCloud. I use an iPhone 18 Pro (four weeks now), and five days ago most of the 2400 photos on my iPhone disappeared.
At first, all my photos that were from before 2022 disappeared from my albums. I was able to located them in the Library section, and asked my daughter to help. She saw the 3100 photos on my iPad and synchronized them (iPad sync had been turned off before this). Somehow, the iPad photos replaced all my iPhone photos. Only about 10% of the original iPhone photos remained. I removed the iPad photos from my iPhone (they now appear in the Recently Deleted folder), but none of the missing iPhone photos are anywhere in the iPhone Photos or iCloud Photos.
The Genius Bar recommended the standards--checking the Hidden and Recently Deleted folders on the iPhone and iCloud--which did not solve anything. They spent hours searching and could not find my photos. I really want to get my photos back, they were the best 2400 out of the tens of thousands I have taken (I usually keep only the one image that I think is best out of a set), and most have personal value to me.
When a similar problem occurred on Dropbox, the administrator was able to reset the folders to their state as of a few days ago. Is there something like this on iCloud? Thanks.