I have two hunters, a warrior tank, druid healer, and an arcane mage, all with War Mode on for the extra XP. I am using EMA and they are set to flag for War Mode with the team. Not sure that would do anything. The Horde shaman was barely even in visual range. It's really weird because this is far from the first time I've been questing around hordies. Running them without War Mode now. I'll probably try again tomorrow and see if the same problem comes up.