[BUG] Rogue class quest that leads to Thistle Tea recipe

The rogue class quest Plundering the Plunderers, that eventually leads to thistle tea recipe (important for rogues), cannot be completed.
Quest requires you to take a ECAC item from a robot near questgiver, to use on an enemy mob to transform it from lvl ?? boss to a killable version - however the robot DOES NOT give any items, and has no dialogue except standard one. This makes the quest impossible to complete
Quest requires you to take a ECAC item from a robot near questgiver, to use on an enemy mob to transform it from lvl ?? boss to a killable version - however the robot DOES NOT give any items, and has no dialogue except standard one. This makes the quest impossible to complete