I had this happen to me once before.. it was when my laptop was overheating. D:
That is an easily replicated bug. If you are speaking to any NPC that zooms you in (Storyline quest NPCs, Auction Kafra, etc) and enter something like RHD or Colo, when you return the background will stay blurred for a while as if you were still talking to the NPC.
why did they even open WOE last night? Not enough problems to fix or what
They think WoE is fine and balanced
It's their priority at the moment. It was said that the critical bug fixes weren't ready yet and that's why they will apparently be addressed tonight. I was hoping WoE tweaks would be put on hold since there is a whole test month and we are experiencing some of the worst bugs since the game left beta, but I should have known better. Alternatively you could look at it as the WoE tweaks being a fairly simple problem and holding off on updating them would be silly.
It all depends on how you view the glass.