I have tried all the things you have said about about, I don't think it is anything to do with apart from the game engine. I think there something up wih, which causes my person and the ground to de-sync as this only happens when sprint and running over a pot hole or running over uneven. This is seen as i can use the tcl to make it work. There must be something to do with the collision in game, I just can't get my head round how to fix it tho. It seems like maybe its the coding in the game maybe. :dry: