So just to get the matchup straight... Was your opponent playing the same deck as you, or did your opponent have Hourglass in the deck? And when exactly did the bug happen? Did it happen the turn after your opponent played an hourglass (activating Hourglass could have triggered desync)? Or did he burrow a shrieker? I'm not sure if burrow has an effect on desync bugs, but zanz mentioned that he had possibly eliminated desync from Hourglass...