This only happens to me in aw. Sometimes my champ won't do anything, sometimes they will do something completely different, or sometimes they won't respond at all and just stand there. This tends to happen directly after a special move or during an opponents heavy. This just started happening a few weeks ago and I thought it was just when fighting Mordo originally, but it is happening against Hyperion and iceman as well. Haven't noticed it against magik, but it has happened a couple times against dorm as well. This is really frustrating.