I'm not sure if this has ever been reported before, but occaisonally my player looses air control. Like when i'm jumping, pressing the directional keys do nothing.
I'm not sure exactly how it happens, but it seems to happen more in jump challenges (yea i know what you're thinking, mass random button pressing), and the effect also lingers after reconnecting.
I did a trace, and the functions are being called normally, but they don't seem to do anything.