Borderlands avatar gamerpic not updating

There has been a similar issue regarding the gamerpic not updating before, though it was somehow related to the avatar items themselves.

Have you tried to use a preloaded avatar, then save the gamerpic?

Also, the gamerpic will always display the gamerpic selected on the console, so any changes that you make with your avatar (as the gamerpic) will only be reflected on either the xbox forums.

If the issue appears to be only from the console:

Have you tried to remove and redownload your profile, then clear your system's cache*?

*for 360, restart console for One

I'm not sure about the avatar, but the gamerpic is an Xbox One gamerpic. The website has been updated to show Xbox One gamerpics in some areas instead of 360 gamerpics. If you don't have a One, you're given a default gamerpic. Gamercards have not been updated
to show Xbox One information which is why it's still a 360 gamerpic.

In the screenshot, the reason the smaller icon has the (older) blue shirt is that this does not update automatically. It is your gamerpic, and reflects what your Avatar was wearing when you took the picture. If you want to change the Avatar in the gamerpic
you should go to Xbox.com/My Account and beneath your Avatar choose 'Edit My Avatar'. On the next screen you can choose 'gamer picture' where you can take a new 'image' of your Avatar, now wearing the updated clothing.

The piccie to the left is your gamerpic. If you want your avatar to appear there, go to avatar design and take a gamerpic of your avatar!

Those are your gamerpics, not avatar (unless you have your avatar as your gamerpic). To change what's shown on the forums, you would have to change your gamerpic on the consoles. The one to the left (on your gamercard) would be a 360 gamerpic because those
haven't been updated to show gamerpics from the One yet. It shows as broken for me too because the forums have just been glitchy.

The one on the top right of the screen will show as a One gamerpic. Sometimes that'll be glitchy too and just randomly change instead of showing your actual gamerpic.