Die animation plays around 1f higher on Y axis than required

When I kill trolls, they play animation "Death", but it is not played properly. In animation tab, I chose death animation, pressed 'record' and changed enemy gameobject to be around 1f lower, but that still doesn't help.

This problem arose after I switched from Legacy animation to Animator. In legacy format death animation played properly.

I tried in script to change position of corpse (in end of death animation I set event "death anim played") :

Code (CSharp):

1.  Vector3 posi = gameObject.transform.position;
2.  
3.         posi.y = -1f;
4.  
5.         gameObject.transform.position = posi;

but that still didn't work. So I had to turn off navmeshagent, and in rigidbody to disable y position freezing. But that still plays animation higher than expected ;-(

can anyone help?

here is a video of this bug:

 

Oh, I solved the bug ;-)
I just set Is Kinematic and increased mass of rigidbody, and it works just nicely ;-)
never used those options before ...