King of the Mists knocked outside the arena with Wind Serpents Fury and no longer targetable

King of the Mists can be knocked outside the arena with Wind Serpents Fury. In the picture it is during phase 2 and he was knocked up to the rise of the platform and can no longer be target with attacks or spells. Meanwhile phase 2 mechanics (tornado. frogs and so on) carries on through out the fight and you can see the boss healthbar. The picture is taking during "pause-mode" when you log out and log back in that's why his health bar and phase 2 mechanics are not showing.