This may occur if your Internet connection, or that of players you are playing with, is unstable.
Due to the nature of online play, which uses the Internet, there are times when the positions of each player are displayed differently on each other's devices as a result of delays in their connections.
Example: Player A's position as displayed on their device is different from where it is displayed on Player B's device.
Since there are times when investigating your Internet connection can improve this, please refer to the instructions on how to improve your Internet connection posted on the below pages.
[iOS] A communication error causes me to disconnect during a race.
[Android] A communication error causes me to disconnect during a race.