I don’t know if it was hidden in there and I only just now noticed, but occasionally my fireballs blew up in my face. I think it has something to do with casting with the item attack animation? (more pronounced on hills) It looks like sometimes is calls Shoot before the animation hits the right frame?
I tried disabling the collider on the projectile and turned it back on in Update and that cleared up most but not all.
The collider I am using is a small sphere in the front edge of the core, so it should not have ever been inside the player capsule.
For now I have swapped the animation to use the Bow so the hand is always outside the capsule.