By Xaander 2019-02-03 16:18:01
I had a similar problem when I came back to the game. A while back there was an SE update that was causing Windower crashes. An add on named pet fix was introduced for Windower and it stopped pets from animating, thus fixing the cause of the crashes at that time. When I came back, I didn't realize I still had it turned on and a strange side effect was that it was causing certain boss animations to not animate (I could see the lines around their bodies that a move was being readied, but not the execution animation). Turning off the add on fixed it for me. I'm not sure if this is what happened to you, but I figured it could help to know.