Blander animation moves differentry in Unity

Hello.

As in title, I've created very simple animation in blender but it looks different in Unity. It is created on model from mixamo. The problem is that feet shouldnt move but are sliding when animating in Unity. I tried lots of different export, locking moving, scaling and rotation, event importing whole blend file. I baked all animations in blender so it doesnt have any weird modificator that unity doesnt recognize.

Below some screenshots: Blender state1: http://prntscr.com/i7o3pl

state2: http://prntscr.com/i7o4c3

And how it looks in Unity: state 1 on left and 2 on right little lifted up:

http://prntscr.com/i7oa3d