Read more about Shadowlands ➜ https://worldofwarcraft.mgn.tv
Sometimes if you wipe during the General Kaal fight for whatever reason you will get locked out of the room and cannot get back in. If you wait for a Chamber Sentinel to fly around the center you can tag it and move it to the door, when you get knocked up in the air you will be able to smack the boss and start the encounter which also resets the encounter.
source
jessuus christ, man thank you!! you just saved my key <3