Ok now I´m getting confused. Your project seems somehow... corrupted? I tinkered around with it and it actually doesn´t work, but starting with a new project and doing the exact same thing... works fine. I really don´t know what´s happening. Am I missing something? In any case, the event should pull the camera towards the player, but what actually is happening is that the player is pulled towards the camera, you can see that when you disable the players platform behavior.
This seems like a case for a bugreport, I have no idea why it would behave like this...