Coves Map Bosses down, Maven remains

Bug Report Reference #71,664,785.

Both Bosses of the Coves Map have been killed, but Maven remains.

A few observations:
Both Bosses are dead, both the Telvar and the Treasure.
The Bosses spawned near a ritual, and the Treasure was killed in the Ritual circle but Telvar was not. The Treasure appeared in all subsequent Rituals.
Telvar dropped Maven's Invitation (The Formed) upon death.
1 monster remains, and multiple loops through the map reveal no more active monsters (not 100% certain, but I did make three laps).
The map is marked as "The Maven currently holds a recreation" on the Atlas.