Zana essence mission with Alva incursion

Bug report reference number: 1,731,982,263

There are not enough remaining monsters to clear the Zana essence mission, the unique mobs inside of Alva's incursion instances seem to be required towards the mission, in which the unique mobs not chosen to be killed disappear; making the mission unable to be completed.

Also related, the mission timer switches from Zana's to Alva's incursion timer, and back again upon killing an enemy, completing the incursion caused the timer to disappear completely.

Same sort of thing, less the timer bug.

Not enough essence monsters spawned (only 2 of the three groups appeared).

I am getting same thing. Didn't notice connection to Alva until you said this. I was left with 2 monsters to kill that were essences, but 0 monsters remaining in map. Also had timer bug as well.

Same, but I actually went to the trouble of getting 0 monsters remaining. Also full-cleared all three Alva missions, and checked the Syndicate Laboratory thoroughly: they aren’t hiding there.