I am not sure if this is actually a bug, but when using the "Glory to Mankind" skill modifier on Havoc Orb, and firing at a lambach summoning tentacle, it will shoot upwards towards the head instead of at the body. It also ends up just passing through the head (I believe regardless of the distance) and not hitting anything on the other side because of the upward trajectory. I believe this is a bug because, on other tall enemies, the missiles still move across the ground and hit at the base of their bodies. It has always been this way, but I don't think I or anyone has ever reported it.