UE 4.25.3 – can’t make layered animations to work

I want to make my character’s upper body animations not connected to the lower body. For example, I have this set of animations: Running Jumping Crouching Kick Sliding Idle with sword Sword attack

I need the idle with sword and sword attack animations override upperbody for every other animation, but the slide and kick. So, I want my character to hold his hand with the sword in front and do sword attack even while running and jumping.

I tried using layered animation like in every tutorial on Youtube. I created the upperbody slot, created a montage for my desired upperbody animation, added the Layered blend per bone node in the animBP and set the bone there, but it doesn’t work. I don’t know if I’ve missed something.