Issues with aim offset

Hello, I made an aim offset that seems to work correctly, however when I try to blend it with other animations in an animation blueprint, it has a strange behavior.
Here’s a few pictures:

My Aim offset file, looking up, works fine
eb9b0d51c6be2948f0d5cfc7c511e68c14fb4b1e.jpeg

Animation blueprint, simple idle animation
fd313d9859acf19edc0a62f6b998585daf0a4078.jpeg

and finally, I connect the aim offset
9c7cc33c97be29c318ede7e158cf165ce65dc3cf.jpeg

I tried to connect the aim offset alone, and it works:
fcefc57c4d3c4040080d9d67500d36cf05a04c2a.jpeg

Any ideas what might be wrong?

you should make a cached pose for blending. also why put your aim offset in the idle? thats the problem. your idle should be alone in one state and your aim offset stuff should be in your main graph to blend so get rid off the aim offset and put it here: