abort game
“Just happened to me too. They were playing a gambit I’ve seen before from an Eric Rosen video. So I played into it until right before the critical move and instead played the best move that gave me a much better position. A couple of seconds passed after my move and then the game aborted?!? I can’t even find the game on my list of recent games?! It’s as if the player disappeared. Their name was a bunch of random characters like “Dpk52784” or something. This is either hacking or an incredibly bad exploit that needs to be addressed ASAP. I submitted a report so hopefully Chess.com staff can look into it.”