Our group has two Warrior mercenaries up. One is set in "Aggressive" stance. The other is set in "Assist" stance. The Aggressive one: [Fri Oct 28 00:06:44 2022] Kayrher has captured a flame disciple's attention! The Assist one does no taunt messages. The Aggressive one has more or the same number of Tank AAs, in fact on that character they have purchased every mercenary AA there is. The Aggressive one also has better mercenary gear. Both are buffed with the same buffs. Yet the Assist one keeps taking aggro. This is happening constantly, in different zones, against different mobs.