I found a bug related to forced cameras.
If the forced cam is right at the start of the map and you reset your run after the forced cam in cam 7, you are not able to steer/accelerate/brake in your next run. Reloading the map fixes it.
I testet other forced cams like loop cams and found no problem with these. I found it only happening on maps that start with a forced cam 2.
Example maps:
https://trackmania.exchange/maps/70270/midori: (https://trackmania.exchange/maps/70270/midori)
https://trackmania.exchange/maps/88473/polar-night-ft-karlukki-storm: (https://trackmania.exchange/maps/88473/polar-night-ft-karlukki-storm)
Reproducing steps:
- drive until forced cam 2 ends
- go into cam 7
- restart your run