Great game, but... – Mastermind for iOS 10 Review

This game has a simple and beautiful apearance. I have not had any problems playing the game. But... I can't log into gamecenter or something, I hit leaderboard and then it tells me I'm not logged in. I hit login and then it does absolutly nothing. Also, I can't play my music while in the app. It stops the music when I open the game, and then it won't let me turn the music back on. Please fix this amd I will give five stars!
Review by fionalikesmath on Mastermind for iOS 10.