Ran a dungeon with a WAR who pulled more than we could chew in Hullbreaker. We wiped, which was w/e but then he kept losing hate. I could tell he was spamming his combos and the dps were not necessarily overgeared. At one point in the second boss I ripped hate healing and all the dps were at the top of the meter. He was also getting trucked every pull. I asked him to turn off and on Defiance to see if it helped and it fixed the issue.

I've seen other tanks complaining so my guess is there's a bug with the auto recast after deaths.