Was doing our weekly ATDH Heroic guild run and ran into some very strange aggro behavior on Volcoross. He was periodically bouncing from tank to tank, and on more than one occasion started attacking a DPS (the same one every time, who was consistently #4 on our charts, #2 melee and #4 overall DPS). We had a few instances where he’d switch between tanks every few seconds.
We cleared him last week with no issues on Heroic, and cleared him on Normal two days ago with, again, no issues.
It felt like he was resetting his aggro table at irregular intervals, but I’m really not sure what was going on. It felt like something weird happened with every Taunt cast.
I’d include links here if I could.