Blackrock Depths - Shadowforge Lock
A couple of weeks ago me and my friends decided to run though Vanilla dungeons to get achievements and I picked up this quest inside Blackrock Depths from an NPC located inside the Grim Guzzler, it is the tavern area where you fight a guy during Brefest. Today I finally collected all items necessary and I was eager to turn in the quest, but to my suprise the Shadowforge Lock doesn't seem to be working. I've looked everywhere on the internet, it is not necessary to kill bosses before entering the West Garrison inside.
This is the route I was taking. You can see the Shadowforge lock @ 0:20. Without this mechanism, crossing to the other side is impossible @ 0:40
https://www.youtube.com/watch?v=ZnJscvlwWdI
I tried to exit the dungeon and reset it, but the Lock glitched again and again. It just seems weird because last time it worked just fine.
Is there a solution to this? It would be greatly appreciated.