Idle x laying animation

Hello, I would like some help on the animation side, if it’s possible to fix it.

I’m not a big guy into animations, I can’t make animations myself, so the animations were made by someone else.
I’m trying to figure out how to make an animation work when playing a different animation.

This is a picture of the idle animation (I’m tilted because there’s a script that follows the player’s mouse with arms and head) - (animation priority is action)

This is a picture where the player is crouched: (animation priority is movement)
image

And finally, this is the laying - the part where it breaks: (animation priority is movement)
image
This is how it looks normally without the weapon:
image

Yes, I did try setting the lay animation to action 2, but then it acted like this:
image