this is happening quit often now days, no online players left and the AI wins the game. the players attends the game and then as soon as the game starts he or she leaves the game, the entire game is played by AI and they keep wining, and the win credit goes to a player who is not even playing. why does this keep happening?
This is not the case unless the player is still connected. If the player leaves the game voluntarily or by disconnection they are given a loss.
You might think a player has gone offline because their page turn arrow icon is missing - but they chose to ignore you which makes it look like they are offline. There really should be too icons - online and AI (the bot icon).