Today, continuing riding after this event (Zwift Power id 2358303), I wanted to do a u-turn mid-climb but it was disabled (no effect at all, either on the App or the game or the keyboard). So I went on up the Ventoux. At the top, on the flat section, my avatar was limited to 24kph max. No way to go above. And, finally, my avatar kept on going into circles at the top of the Ventoux, not taking the route down nor letting me choose at the junction.
Game version: 1.0.85684
Launcher version: 1.0.52