Where: Barovia - Raduta Keep - Haunted Zeklos Keep - Main Floor
When: Observed shortly before 8:56 PM UTC.
What: Ghoul Lord passively paths over an electrical trap, takes damage. The Lyrists were triggering it, as well. Ghoul Lords, being fleshy corporeal undead, died to the resetting traps quite readily. It also triggered the Lyrists to start using their Belgarns-like abilities.
Recreate: Ghoul touch trap. Ghoul get zap.
Ideas: Probably a faction bug between the traps and the mobs? I have not tested this with other mobs in the dungeon or the other wings by forcibly dragging them into the traps.