Yesterday, with my Guild, we tried to enter the Raid of Sunwell Plateau. However, at first the fight with the first boss (Kalecgos), it disappeared instantly and did not return.

I am aware that the first boss can jump, for that reason he continues to dabble, but the Second boss, Brutallus, disappears and reappears in what he can, something that can not be killed.

And logically you can not move forward because "Agamath, the first gate", is blocked.

Does anyone know if this dungeon can do it?
If there are errors, can you jump to continue with it?

All in order to get Transmog items and fun.

Thanks!