Character drops through Floor in Game Engine My character always falls through the ground in my game. I put character physics on it, so it falls, but it always goes through the floor. 

I tried to make it land on a skateboard when the game starts, but the skateboard just slips away and they both fall. There is character physics on the skateboard, too. So why does this happen?



Also, sometimes it won't even fall to the floor and will just shake  and hover above the ground as well as the skateboard. Why will they either fall through or not even touch?
I think that happens when you scale/rotate an object, but don't apply it's scale. 

To do this, press Ctrl + A> Apply scale.