It sure is strange. I sell on 3 sites. Most of my pics are still showing, only a few are missing here and there. 2 are auctions sites, and I still have my Ebay store. I didn't check my store yet, but I imagine those pics will still be there.
The worst part for me is one of my pics that is MIA is for a Featured Auction. Yikes! Thats not good. I have to pay good money for a featured listing, and not to have the pic? It's going to be costly for me due to just that one auction.
But, as far as Auctivas service, I really like it, and have been here for many years, and seldom has there been any problems. You really can't beat the service and it's free. I'm sure it will be fixed as soon as possible. Keeping fingers crossed.