Not seeing custom achievement icon in GameCenter

Question

I created an achievement for my app in Game Center with an English localization containing a 1024 x 1024 graphic.

I completed the achievement, but when I load my GKGameCenterViewController and tab into the Achievements, I'm seeing the default trophy icon. The English text is there and correct. I am in Sandbox mode.

Why might this be happening?

Answer 1

This is a caching issue. To fix it, simply trash the Images folder located at ~/Library/Application Support/iPhone Simulator/<VERSION>/Library/Caches/GameKit/Images

Answer 2

I'm not sure, but I think that it's normal for games that are not live yet... Sometimes happens the same with my game! Wait some time and then try to look again in the Game Center...