decent game but – Mechanic Escape Review

achievements aren't unlocking successfully. i am on ios 8.X and logged i to game center. however i can't seem to unlock achievements (sliding 50 times for example). the only ones that unlock are: retrying 10/15/20 times, and when they popped up, they continued to pop in and out over and over until i closed the game.
Review by gamecenter police on Mechanic Escape.