I'm running the Preservation mission solo for the Pinnacle. I run all 3 of my 1580+ characters through it each week.
However today with my Titan, some of the Yellow Bar Abominations and adds are re- spawning in up to 3 times during the first phase before you get to the Puzzle Pyramid stuff. I killed 12 abominations just getting there.
Anyone else seeing crap like this? I've never seen anything like this before and I've probably run this 15 times.
I'm on Xbox if that makes any difference.