Known issues
Fixed in the Valentine update:
- Some devices (e.g. racing pedals) are recognized incorrectly and render the game unplayable. You can try forcing generic gamepad emulation via Big Picture Controller Options, but that's not guaranteed to fix the issue.
- Vibrations affect unused controllers. Steam Big Picture controller settings can be used to turn off vibrations until the fix is released.
- Stick sensitivity is awkward. Steam Big Picture controller settings can be used to tune the sensitvity until the fix is released.
...