Stuck on the Realm of Light III - A Headless History

I ran the quest until the part where I was dropped into a room and Warden of wisdom spawns on me. However the Warden disappeared after I killed its first clone, and the quest stopped giving me any prompts. The door of the room does not open nor are there any new enemies to fight in the room.

I tried:
Logging out: Logged back into the same empty room
/Lobby and switching servers: Logged back into the same empty room
/kill: run through the castle and dropped into the same empty room
Creating a bug report: no response from the QA team

Posting here to see if anyone knows the solution/workaround. I know I can just not finish the quest and do something else, but this is the 3/5 quest line and I don't want to be locked out due to some bug.

 

a similar thing happened to me as well
i disconnected during the fight and the warden didn't respawn
idk how to help you, really sucks

 

RoL 3 is a bugged mess right now, unfortunately all you can really do is wait until it's fixed in an upcoming hotfix. Hotfix 6 was 2 weeks ago so we should be getting hotfix 7 soon