Killed T17 Abomination boss but map in still incomplete

As the title says I killed the map boss and even left the boss arena but the map completion did not appear.


The map is still incomplete as seen here, and the boss corpse and maligaro corpse are also above me. But the ghost maligaro still exists for some reason.


This image shows that arena is no longer closed

Happing to me right now with the Doedre ghost in T17 abomination as well. No credit awarded to the league grind challenge, map boss altars kept spawning after the boss loot dropped. Ghost has been attacking me the entire time I've been typing this and before for at least 3+ minutes.