Game/Msq blocking bug: can't access the room where quest is located (end new dungeon)

PROBLEM SOLVED - THERE WAS A NPC NEAR THE DUNGEON ENTRANCE (WITHOUT QUEST MARKER ON HIM) WHO ALLOWS YOU TO ACCESS AREA WHERE QUEST IS LOCATED

I think the MSQ's name is "a brother's grief" (my next main scenario quest log is "???").

My map shows that the next MSQ is located on the alzadhal legacy dungeon icon in thavnair https://imgur.com/a/p9KQAjs

In weaver's warding room, to be exact.

Except I don't seem to be able to get to this room if not at the end of the new dungeon. But when I complete the dungeon (with players or with NPCs), there is no quest marker, I'm still in a duty so I don't even know if quests are available.

My understanding of the problem is that at the end of the first completion of the dungeon, the game loads you into a "special" instanced area where you can complete the dungeon quest and take the new msq.

But I seem to have left without taking the new msq right away and now I can't go back to this "special" instanced area where the msq is located since I've already completed the dungeon for the first time.

This is game blocking because I obviously can't progress in my MSQ until I get a hold of that quest.

The problem exists on my Spriggan character, name is Ikhor Auriel. I've already completed the quest on 2 of my other characters, which is why I think I know what's going on.

Thanks for any help.