Anyone who enters a certain range of the boss spawn while they have the delve quest will trigger a spawn, regardless of when the boss was last killed.
Delve bosses have a natural timer of about 5 minutes.
phaneub17_ESO wrote: »Anyone who enters a certain range of the boss spawn while they have the delve quest will trigger a spawn, regardless of when the boss was last killed.
Delve bosses have a natural timer of about 5 minutes.
Then the quest trigger needs an update, I've sat there for 5 minutes on multiple Undaunted Delve quest targets while a few seem to pop up immediately upon entering the room. I'm doing them across 12 characters a day, sometimes twice if I missed the previous day.