This will be quite complicated so bear with me. I recently changed my avatar to a new "Sonic Battle" Card with my character folding his arms. It stayed like that avatar for a few hours. Just now it turned back into the avatar I had a few days ago (Three of my characters standing on a cloud talking to eachother). I got to my controls to change my avatar and it show my first avatar! (a different Sonic Battle card)

EDIT: I can see the avatar I want in my controls but it is still showing the wrong avatar on my profile! I tried refreshing and everything!!!

This is one big mess. Now I see my new avatar on some comics, but not on others!
EDIT: Fixed! For now.

It seems the only way to fix this is to bypass your browser's cache. Try holding Shift while you refresh the page on which the problem lies.

Unfortunately I suspect other DD users will still see the original avatar if it is cached in their browser. There's really no way around this. If you don't bypass the cache it'll probably take a few days to update for everyone.

I have no idea what it means but it worked. :P