Blend per bone and anim curves


I have some issues with Layerd blend per bones. There is two animations:

  1. Animation from Locomotion state machine. Inside of Locomotion animation is contain curves for the legs
  2. Rise weapon animation for upper body (clavicle, hands, etc…). No any curves

When do blending via Layerd blend per bone my curves is blending also. There is any way to skip curve blending?