How to make player avoid objects in play mode? (A*)

Hey everyone, so I have implemented the A* pathfinding created by Aron Granberg in to my level. It makes the path and I can play around with it as much as I see fit, which is great! But there's only one problem: When in play mode, when the player is faced with a random obstacle on its path, it can't get around it. However, when not in play mode I can just put the obstacle, scan the level, and it avoids it perfectly. Can anyone help me with this problem/give me an idea as to what I should script to make this work?

Thanks!! :)