Michelin
iPF Noob
I initially had this problem as well...my friends were showing up in the game center, but not in the game. I deleted Dragonvale from my iPad and reinstalled it. Not only did my friends finally show up, but I guess because of the game center information doing this did not affect my game play at all. What I mean is I still had all of my islands, dragons, coins, etc.
Not sure why you are responding to such an old post but I thought it might also be helpful, bearing in mind that there has just been an update, to add that this is quite common around the time of an update. It also means that deleting your game etc is probably not necessary.
If you, or your friends, have not yet updated but the other person has, you might find they do not show up in your friends list.
Real life example: I had just updated and got a call later that morning from one of my GC friends who said he could not see me on his friends list anymore, even though he could still see our other mutual friend. This is because they had both NOT updated and I had. They can both see me on their friends list again now that they have both updated.
(of course there are other times where deleting and reinstalling IS necessary so that's still good advice :thumbs
