Wen the current player has finished the loading screen in a multiplayer match and waits for some other clients to load and there is much delay between the disconnect and the next player finishing the loading screen,
then the loading screen will show that it waits for one player that has disconnected long ago, which may mislead the host to try to kick the client if it is an observer.
The according message updating that screen is sent when a player finishes the loading screen, but not upon disconnect. The patch changes that.