I just had a thought. Maybe this has something to do with the servers going down for a while yesterday. I wonder if the servers lost the recent info and had to go to a backup... which had the old art. If that is the case, it's actually good news as it means they will presumably upload the new, much more attractive artwork again, hopefully soon.
I think this is very possible considering that the servers went down without any warning to us... perhaps their being down was not intentional.
Also, this theory jives with the fact that some people lost more artwork than others. Maybe we connect to different servers which were last backed up at different times before they all crashed.
Just a thought.