Damn. It's not a bad "not game" though. And honestly I think the bug felt like it added to the atmosphere, rather than detracting from it. It made the whole thing suddenly feel extremely creepy.
I was playing the webGL version (Firefox, Windows7). I remember distinctly that I was walking towards a door because of how the light fell away from me. Maybe I'll try one of the other builds later. Tomorrow I'll be playing these games from a different computer, so maybe I'll download then, and see what happens. Can't wait to see this new build :)