As a melee, I either need to bug it out and get stuck inside in order to hit or relly o aoe.
Its hit box is so tiny that only at tje exact little spot it will work.
And no, it is bugged. If I use some teleportation skill to be on top of it, most often it takes somewhere but the hitting box range.
That is a huge deal on AC explorable mode on howling king and tunneler pathes.