No, not here. I've never seen that before.
Too bad you didn't get a screen shot / screen capture.
Hi Kansha,
Windows 7, Google Chrome Version 28.0.1500.95 m are what I was (and am) using. Chess.com support suggested I clear my browser cache. Without doing this, the problem has not reappeared. I often have other glitches, as well, come to think of it, but they usually involve sound -- is that one common, I wonder? Sound comes and goes. (Often captures make a sound but nothing else does, etc.
Hi All, I just played azm-19, but the weirdest thing happened. I should have aborted the game, I guess, at the start. I saw an extra black pawn on b7 for most of the game. And I couldn't see my (black) pawn on g7 for the entire game. In fact, I couldn't see anything on g7 for the whole game. My opponent wound up winning by promoting an invisible pawn from that square. Has anyone else experienced this?