I recently offered a draw to my opponent, who messaged me back that he'd take it but instead of accepting my draw offered me a draw in exchange. Because I thought we'd agreed, I accepted his draw without thinking much about my move. Apparently my acceptance didn't end the game, because. seeing my move, he then changed his mind and the game continued. (Of course, I lost!) It seems like there might be some glitch when one person responds to an offered draw with an offered draw themselves. Any thoughts?