Heya.
This incident happened today. We took the quest as 2 people, entered the cave and found that the entire thing had no enemies in it, but there was loot. Basically walked to the end of the dungeon and got credit for the quest and that was the end of it.
Quest: Managing the Murklaw Menace
PCs who took the quest: Selise Ironblood, Chria Amraphen
Issue: Quest enemies failed to spawn.
Think I figured out why this sometimes happens. Should be fixed next reset.