Xbox Gamerpic not updating?

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.

Hey mate,

All of the gamerpics have updated with the xbox one. When I updated to xbox one, my gamerpic went into a tiny picture as the quality of the 360 gamerpic is a lot less then the xbox one. Unfortunatley, you'll have to update to one of the new xbox one gamerpics
if you want to maintain the quality. Also, once you switch to a new gamerpic, you can't go back

Cheers

Denaz

You can only change your Gamerpic on the Xbox. Changing your style does not change your Gamerpic. Turn on your Xbox and update your Gamerpic.

You can only change/set/update your Gamerpic on the Xbox.

FYI, this issue is now resolved for me. The problem occurred for me soon after I created a new XBox profile for my fiance. I noticed that her GamerPic was always empty when we were using SmartGlass and while she was in XBox Fitness. I went into her XBox
profile and updated her GamerPic and this fixed the problem (the CDN error went away and we could both see her GamerPic in SmartGlass and XBox Fitness).

Based on this information, I'm assuming that it's possible to get an XBox account into a state where it hasn't fully synchronized with XBox.com. I doubt the problem relates specifically to the GamerPic, but rather, updating the GamerPic forces some kind
of account synchronization that indirectly fixes the problem.

Rather than purging friends one by one, maybe see if any of them are missing GamerPics or profile content in SmartGlass, and ask that they change something in their profile to force an update.