It's not just you, none of those are working on any of my shells. And I only use those shells for the AC, so none of them have any avatars on them. I tried turning of my ad blocker to see if somehow it was a popup issue, even though avatars don't appear through pop ups, but it's not that. I also tried turning off my proxy to see if that was the issue, and it wasn't. My guess is JS managed to break something again. Possibly when they were putting in the captchas for the userlookups and petpages, since I believe that was the last major site update, and many avatars are petpage/userlookup based, so I wouldn't be surprised that they managed to break search bar avatars and maybe even some of the refresh avatars.
I'd say, sadly, send a ticket in just in case they broke something again and haven't noticed it.