Has this ever happened to anyone as well?
Backstory: So I was doing IC runs for progression, when my Erwin's head started twitching like crazy out of the sudden. This is not the first time it happens, but it's the only time I was able to record footage. Here, during the first half of the twitching, the only problem was the head (1st video), then after a while, my skills bugged out (2nd video). I had to bear with that second time until the boss room, which then it thankfully reverted to the 1st part, and was only completely fixed upon leaving the dungeon. On all the other times I get similar experiences, but sometimes it gets fixed once I alt+tab, and only very rarely it passes normally. From my experience i've only seen this happen on Erwin.