Stuff saw with the FTE thing while testing broken mirror stuff at level 105.
1. Agro is extremely flaky. I was spamming agro on targets and having an auto attacking rogue pull off me as a shadowknight, the healer merc was pulling off of me as well even halfway through fights.
2. Our puller brought 3 mobs in, and died about 15 seconds into the encounter. We could attack and kill the mobs, but the mobs turned gray and gave no task credit. Later, I pulled and died as the tank, but was rezzed mid encounter, the mobs turned green again and gave credit. I do not believe the mobs turning gray if the initial puller dies would be an intended behavior.
3. Some of the tasks in open world had mobs that spawn linked to the group similar to how the * mobs work on early TLPs, (such as XXX's nemesis or XXX's challenger)if they spawned and proximity agroed the out of group shaman, they bugged and went agro and we got no credit.
4. The agro was EXTREMELY flaky when a pet was involved. At 105, the mage pets on normal servers hold agro very well, I can barely yank off a mage pet for long as a SK, but the pet seemed to have agro issues that were worse than my own when multiple melee characters were on a target, despite having taunt turned on.
5. We were attacked by all gray mobs we came near (there were other people in these zones fooling around and training/fading), but could not attack them.