In-game photos have become blurry, as if compressed

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...