Mysterious Checkpoint Incident

In 2021, players started reporting that they have experienced the so-called mysterious checkpoint glitch.
This glitch showed players that they are missing one checkpoint if the player was playing in the multiplayer mode with a server controller such as: 
# Automatic Server Electromagnetic Controller, Official (ASECO).
# Frequency Absorption & Selective Transmission (FAST).
For example, a person would collect all 14 checkpoints on a map but the counter would suddenly turn up to 15 after they collected the last checkpoint. 
In March of 2022, it was found out that this checkpoint was placed somewhere inside the stadium, although invisible and in a completely random position, either in the air or on the ground. 
No instance has been found where the checkpoint was placed outside of the actual playing zone.
After many player complaints about the glitch making it impossible to finish virtually any map (although random), it eventually sparked a TrackMania community riot and protest, this glitch was subsequently fixed in version 20.7a.