Player Falling Though Floor After Build With Unity IPhone

Usually when testing my game (Iphone 3rd Person Game) with Unity Remote everything goes fine and I can walk around and play the level. When I build my game as an app my player now just falls through the floor and falls in oblivion.

Anyone know why this is happening?

Also let me know if you need more information.


Likely causes: mesh collider not set to convex or character controller not properly fitting the "character" or ground plane not having any collider at all or character already below the ground plane then the scene loads i.e feet through the floor