Dracthyr playing BfA

I am level 60 Dracthyr. I just completed most of the Kul Tiras MSQ line. I am at the “Siege of Boralus: Lady Ashvane’s Return”. On the list to the right side of the screen, beneath the quest title the text says it has been completed. While this is an alt I haven’t done it on it. The map shows a circle near the dungeon entrance, but no npc there. The harbor shows Ashvane’s fleet. The specific dungeon list does not show the Siege of Boralus. It does show most if not all the dungeons in BfA. So any ideas as to why this is? Would like to complete the story line on this toon.