T17 Map (Abomination) Won't Give Completion

Happend to me as well and I also had maven mod so it seems to be the issue...

Report number: 2 317 967 292

this bug is still present. just happened to me

+1, also just happened to me still almost 5 months after this was first posted, missed out on the stupid challenge progress too.

+1 - same thing just happened to me as well... really annoying, especially since I had a Ritual altar in the boss room I couldn't complete because of two of these annoying ghosts shooting the arena up long after the fight.

Reference #2795285732

+1
same thing, killed bosses, got fragments, ghosts persist. Can´t complete map.
With already mentioned mapmod "Maven interferes with Players".
Definately interfered with me unlocking my map slot :D

Still not fixed

+1 still an issue when maven present in map via map mod.