Yep, I genuinely don't understand it; I started noticing it happen to me in games with certain types of "smoothed" jerky camera movements a few years ago and I'm not sure if it's a change in my vision, my brain, my age, or just spending way too much time on a screen developing games. A setting to turn off the camera movement tween, or to make it happen more slowly would be helpful, and perhaps it wouldn't be as big of an issue if I could run it in fullscreen? though I don't think that was the problem. Anyway great work and happy jamming!