Problem with blending anim montages

i have two different anim montages that i trigger with buttons. One is ‘reload’ and is blending with default walk cycle from ‘spine_01’, so player walks and his hands perform reload animation. Second one is ‘kick’ that is whole body animation and therefore is blended from ‘pelvis’. Problem is, if i perform ‘kick’, all is OK, but then if i ‘reload’ (which is also without problems) and then perform ‘kick’ again, kick animation is playing only from ‘spine_01’ up. how do i reset bone blending?
Thank you, H.

Bottom section is for kick animation.