It's probably caused by some laggs but i found something interesting:
after reloading th main menu it did work:
Fun with leaderboards :D
Or, as a friend of mine said:
"You are the entity of the essense of true gaming. You beat nr 1"
#1 beta tester 21/3/2015 - 27/3/2015
#3 beta tester 27/3/2015 - 28/3/2015
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