I was doing a +9 with my Warrior (Vulperinn-Azralon) and after killing the Crawth we went for Vexamus, killed every elemental inside but the boss didn’t spawn, that may be because the tank was caiting the mobs out of the circle that is the arena for vexamus… but i still lost a pretty decent run for this, and we figured out that we were permanently in combat… maybe some mob got stuck inside the ground or something