I've noticed since ToV released, during raids, my spell bar completely locks up, grey's out, whatever you want to call it. This sucks, especially when you raid competitively. The work around for our BST that have this happen is to FD. I play a Ranger, the work around I've found is to click my Wild Unity and then crouch out of it. I haven't seen a post about this, but it seems like a significant bug and someone pointed out that it is due to the Bard Quick Time ability. So far I know this has happened to our BST, Ranger, and SK classes so it seems like a hybrid issue. It really sucks when you fire all your burns then can't cast a single spell, it screws up alliances and all sorts of fun things.