We recently migrated to XF, so I apologize if this is an easy admin setting or something I'm unaware of. We're noticing that animated gifs are only animating at some sizes - here's some text from the user that investigated this:
Is this by design? Is there a way to make it so all of the sizes animate? Thank you!Doing some poking around with my own avatar and profile, I see the forum has at least 3 different image sizes available for avatars. If you look at the url for a post avatar you will see /m/ in it, but if you look at a profile avatar you will see /l/ instead. In your case the /l/ version animates (even with the erroneous extension), but /m/ and /s/ don't.
Most likely what is going on here is that the /l/ version is the original uploaded file, then the forum resamples the image to make the smaller ones, and removes any animation in the process. With some such scripts this is a togglable option, but in others the script just can't resample without removing animation frames. I have no idea which category xenforo falls into.