I created a leaderboard on iTunesConnect.
I use "Show Leaderboard" behavior on the button press.
But when I preview the scene and press the button.
it show "blah blah blah , but this is when the Leaderboard (Invalid Expression) would appear"
why after the Leaderboard , show "(Invalid Expression)"?????
Is that anything wrong , or it's fine?
I'm sure I fill correct Leaderboard ID , what's wrong about that?
(Sorry for my bad English.)