Just wanted to share a different experience I had last night. I was playing in Sparkfly Fen, but had already killed Teq once so was messing around looking for another group event to do. Found the Ash Horizon just as Teq spawned, and even though I was on the complete opposite side of the map, I lagged. Horribly—skills wouldn’t trigger, screen stuttered, the works. It was exactly like the lag you get while trying to kill the dragon, except I wasn’t anywhere near him and there . The person I was playing with experienced the same lag, to the point where we had to leave the map and complete our dailies elsewhere.
I guess I’ve never been in a different section of the map while a major event was going on, and wondered if others had experienced this and or reported it. So figured I’d make a note now, as I didn’t report it in game last night.