I've created a leaderboard for my game, and when I'm testing my game, the leaderboard shows up. However, it doesn't have any scores, and when I achieve a high score while testing, the high score doesn't seem to submit to the leaderboard. I've tried logging into game center and achieving high scores under my own game center id as well as my sandbox game center id, but still, no scores seem to be submitting to game center. When I check the leaderboard, it continues to say there are 0 players. Any advice?
Thanks!