I just tried that after your comment in my charmander snap, but it's taking a very long time to upload... I had the same problem when trying to change mine and this tribes avatar. Maybe just because of the heavy influx of traffic today.
You can also upload it to imgur and copy the URL directly to the image, ie. http://imgur.com/K2du23d.jpg into the URL field, it will auto download it and know its an image snap.
Note, the last part (K2du23d.jpg) is VERY important because posting just http://imgur.com/K2du23d/ will lead to the page and create a link snap instead.
I just tried that after your comment in my charmander snap, but it's taking a very long time to upload... I had the same problem when trying to change mine and this tribes avatar. Maybe just because of the heavy influx of traffic today.
You can also upload it to imgur and copy the URL directly to the image, ie. http://imgur.com/K2du23d.jpg into the URL field, it will auto download it and know its an image snap. Note, the last part (K2du23d.jpg) is VERY important because posting just http://imgur.com/K2du23d/ will lead to the page and create a link snap instead.