Turn 5: Twintania/Scourge aggro glitch

Time: 7:00 - 8:00PM MDT, March 10th
Frequency: 1 in every 4/5 pulls
World name: Sargatanas
Character name: Halcione Platinum
Monster name: Twintania/Scourges
Class/Level: WHM/50
Party or solo: Part
Area and coordinates: Turn 5

Steps:
1. Single tank (Paladin) method
2. White Mage cast Protect and Stoneskin, Scholar cast Eye for an Eye, Paladin cast Rampart
3. Paladin runs into group of mobs, attemps to pick up aggro and maintain hate with Flash
4. White Mage receives immediate aggro from Scourges/Twintania

Normally the tank would run in and have all the red aggro lines point to him, like an aggressive mob normally would when seeing a player character. Occasionally the Scourges would ignore sight aggro on the Paladin and target myself on WHM, despite being on the opposite side of the arena or completely behind the boundary line upon start of the battle. The Scholar, the only other member to interact with the tank, never pulled aggro from the Scourge nor did any of the DPS players.

Your tank did use a random buff after the initial aggro from the mobs was made, right? It's known that scourges will randomly pick their own targets before hate is fully established.