Well yeah, the point of that widget is not to show recent activity in general, that's what the /recent page is for. This is just meant to show recent topics, which is why is goes to post 1.
Unexpected end of JSON input on Avatar Upload
This might be one of those Schrodinbugs, but I got an
Unexpected end of JSON inputwhile trying to upload an avatar.
This was after trying a few times, and getting rebuffed for having really big avatars. And finally, I found one which wasn't gigantic and it went up.
After that, I decided that I didn't like that avatar and swapped it for another one, and I got that strange error, but the avatar went through, from the looks of it
To clarify, this happened on these very forums.