I got a couple of achivements after the patch, but I'm still missing out on my Death March anchivement.
PS. Tried doing "Power Overwhelming" after the patch dropped, didn't trigger the anchivement.
Same deal as me. Yesterday I got a (2nd) batch of retroactive achievements after a small update to the game, but when i beat the game today...no achievements. It Seems they put out these mini-patches to gives us our old achievements but still have not fixed the system...