Hi,
I've gone ahead and added a leaderboard to my app through iTunes Connect, given it the proper ID, etc. I believe all the setup is done properly. When I load up the leaderboard on a device, however, the only score visible on the leaderboard is that of the current player.
Example: I sign into Game Center as player A. I beat my score, and it uploads to the leaderboard. I open the leaderboard, I see player A's score only. Then I sign into Game Center as player B, beat my score, and load up the leaderboard. At that point, I only see player B's score.
Any ideas on what I might be missing?