Has this happened to anyone else? The entire app was just sort of trashed for me in the update. Opening it up doesn't open any windows.. I have to really fight it to even open a messages window. Once I get a window open it won't send messages, though I was able to send messages through a share sheet. My rMBP still gets message notifications, but clicking on the notification doesn't do a thing. I haven't been able to find anyone else talking about this. I've thought about maybe trying to reinstall the update. Other than that I'm at a loss.