Every time I've tried to change a button's type to Game Center, it always switches to Game Services. It happened when I've tried export the game to iOS.
The name of the button is "Game Services" for all platforms, it is a placeholder for the equivalent service on any platform. On iOS your export will contain Game Center and on Android/Google Play it will have Game Services. On Amazon(also Android based) exports it will have Game Circle.
Isn't it supposed to take me to a leaderboard? Whenever I tapped on the button, it doesn't even do anything.