I have a problem with platform movement. How you can see in the picture below. I use platform for moving the player and there is a collision which does not fall into the hole when player is moving. If I go step by step by pressing the arrow, I fall into, but if the button is pressed, player moves above the hole (blue line). I was trying to change gravity, collision shape and so on and it haven't helped.
<img src="http://img18.imageshack.us/img18/1740/x68t.jpg" border="0" />