Enemy position and animation problem

[CoreyRB]

Ok, this is a 2 parter.

Part 1: when ever I kill an enemy it is supposed to make a ragdoll of the same object, and it does. But after a while of laying on the ground, the ragdoll goes jumps up about 300 feet into the air and when it lands, it waits a few seconds and launches up higher.
I made sure the colliders on the ragdolls are not touching each other, and it still goes flying

part 2: This one happens with switching between animations with the AI. An Idle animation plays when player is out of range, the running animation plays when it is within chase range and the shoot animation plays when it is in range to shoot. When ever it switches animations -for some reason- it glitches down into the ground. I know it isn’t the animations because they were made by me in blender and I know they are on the same co-ords.
This is the enemy AI in case if it is needed:

function Update(){
 if(Distance < ChaseRange){
rigidbody.isKinematic = false;
Chase();

}




function LookAt(){
//renderer.material.color = Color.yellow;

if(animation.IsPlaying("Running") && Distance > ChaseRange){
animation.Stop("Running");


}
var rotation = Quaternion.LookRotation(Target.position - transform.localPosition);
transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * Damping);


}


function Chase(){
//	renderer.material.color = Color.red;
if(!animation.IsPlaying("fireandreload 1")){
animation.Play("Running");
}
	moveDirection = transform.forward;
	moveDirection *= MoveSpeed;
	
	moveDirection.y -= gravity * Time.deltaTime;

	controller.SimpleMove(moveDirection);

}
}

I would really appreciate any help on either problem because I cant figure out what is going on.

[CoreyRB]

I fixed the first problem, the parent of the armature/mesh parent had a rigidbody on it. When I removed that it stopped it’s random jumping 300 feet in the air. I still have the second problem though. Where it sinks into the ground

[CoreyRB]

Ok, I just fixed the sinking into the ground. It turns out that it was also a rigibody(I used it for isKinematic, but apparently I didn’t need it).