Ideas
I understand what you're saying about the game engine loading photos/painting "at much lower resolutions then it did a year ago," but do you know around what date/update the saves would have started locking us in with the low resolution versions? This thread goes back about 4 months but I had been playing all through December with a household that was taking a lot of photos and didn't notice anything was wrong until this week.
I'm just trying to figure out if any of the saves I have backed up, which go back to the start of December, would still have the higher resolution versions of the in-game photos intact. If EA decides to revert whatever they changed, I can just start playing again with one of the old saves, even if I lose a little bit of gameplay. I'd wait to save again until there is a fix so I don't overwrite with the low resolutions version, and be "locked in," as you mention. Hopefully that makes sense...
I noticed the change the day I made the original post. According to a Discord post I made on the subject that was 8/27/25. I'd played about a month/little less than a month before that, and I'm pretty sure there was one patch in there?? I assumed it was after that patch. I don't know about paint by ref paintings, but I know for sure that photos weren't bad quality before that. At least mine weren't.