I often solo the Rengol dungeons for my daily orc tag quests, and when you run up to fight the boss, because of the animation (I like the camera effect animations so I do not turn them off) you cannot start fighting him unless you run under him. In fact, you can run circles around him and as long as you stay a few feet away he will not start attacking and if you attack him it will not hit him. This is annoying since it means you have to run right up to him, and then he always gets the first hit. It would be nice if you could just start attacking and he would go into action as soon as you entered his area as do other bosses.