importing model into unity causing distortion

I have a model that is animated in 3ds max. I rigged it using maximo, brought it back to max and used the biped script to convert it back into a biped. I tried importing it into unity, but when i drop the model into the scene, the mesh is all distorted like a glitch in a game. Im not sure whats causing this.

Something messed up with the weight values of the skin. My guess on the converter script. Why do you need a biped ? Maximo’s animations don’t suit you and you want to edit them, but the rig isn’t what you want ?