The Fae Vault contains a Defend objective that spawned all of its enemies when I arrived, not when the machine was completed. The extraction machine cannot finish its extraction, and stalls out indefinitely.
Edit: I completed the Vault at Champion difficulty successfully, but at Balanced, this encounter always spawns for me and never works as intended. The Defense encounter always has enemies spawned before I get there, starting the objective never spawns further enemies, and the objective never completes.
they are stuck behind a wall, if you bring the telescope you can see where they are and an aoe spell like quake or shockwave will kill or spawn them
just ran into this tonight
Have had this bug twice now, where after the first round of defense in the Fae Vault via the Watch, the next round of Bound never spawns, rendering the vault uncompletable.