That's definitely a bug. It looks like the puzzle tried to start before it could buffer the video for playback. I'll look into it.
Yeah, after this I tried to play another browser game, and I was getting visual errors as well. My browser might just be screwed up. I'll try it with something else in a minute.
Haha yep! I tried it with Microsoft Edge, and it worked. I think there's something wrong with my Chrome. Very relaxing game.