I think I found a bug with steam...
When I was playing Spiral Knights (I downloaded from steam) I opened the steam overlay about 3 times (Don't ask why) my knight glitched out as if if was still in the steam overlay or in any window where the knight would be moving his head and hands. I haven't seen any glitch like this before but when I was glitched i could shield and use vials and also switch weapons, but i couldn't move only when i have a vial out or when i'm shielding but i couldn't attack shoot use battle sprite skills or dash or shield bash.
Help? I have never seen a glitch like this before because its like steam just quit on me cause i couldn't take any screenshots.
It happens when I lag out of the steam overlay then open it again