How do I go about turning in the Maw of Souls world quest?

Hey, folks. I completed the Maw of Storms dungeon, after being in Stormheim and picking up the world quest for it (Maw of Souls, Menace of the Seas).

I ran it on heroic and under the objectives it says 1/1 Soulfiend Tagerma slain, 1/1 Helya defeated.

But the world quest is still active, and I am at 0/4 for world quests for Stormheim. How do I trigger it to complete? Thanks.