Two things that have been driving me absolutely nuts since the patch.
Sometimes Avid Boneyard simply will not cast. I press the key, nothing. I press the secondary bound key, nothing. I see the key press light up on the hotbar like I've pressed it but nothing happens, no aoe indicator, nothing. I'm not out of magicka, there's no reason it doesnt cast. If I swap to my backbar, the ability on the exact same key casts fine. I can't pinpoint why as it seems to be completely random.
On top of this, sometimes I just can't enter or exist first person mode. Drawing and stowing my weapon fixes this, but still really annoying.
Finally for some reason in combat after casting certain necromancer abilities, namely blightbones, and immediately light attacking, it just doesn't light attack. Or heavy, actually. I can hold in to charge a heavy and I just stand there with my sword out. When I release, nothing. Have to cast another ability or wait a good 2 seconds before I can swing again.