Hi idnotl
Do you check the Sticky Tread on top.?
https://itch.io/t/19817/getting-your-controller-connected
This Program cant handle negative values from the Transmitter.
I think it depends on what Engine this code was written.
You need configure your Transmitter, to send only positive Values.
I currently use the Windows version, and FPV Freerider never crashed.
2 years ago, i used the Mac version, and i cant remember some issues.
Do you can provide more information, maybe can help you, to solve the problem.