Youtube video I made that shows the issue: Aiming Up Montage Issue in Aim Offset - YouTube
There is no difference between the additive settings of any of the three aim directions (straight, up, down)
Just seems to not play the animation abruptly when the angle has exceeded ~45 degrees or something.
I’ve tried every combination of layered blend, additive blendspace, and aim offset suggested by all the other answers and forum posts on here.
I was also watching this video and he seemed to have the same issue (in the comments he mentioned it) years ago: Week 2: UE4.9 Using Anim Montage to play Rifle fire recoil/kickback animation - YouTube
Is this a bug? or am I missing something? Pretty stuck on it.