Update / Solution: I found the solution. The issue was that the leaderboard cannot be submitted on its own, even though it seems possible from the UI and documentation. What worked for me: Create a new app version Add a Game Center-enabled build Add the leaderboard to the same submission Submit both together for review After doing this, the leaderboard was accepted and works in production. So the key point is: The build and the leaderboard must be submitted together in the same review. Hope this helps others!

Same problem here! any solution, or just wait?