I tried everything I've learnt over the many, many years of simming. But when everything works in the settings, but not when you want to actually drive it, what can you do?
The days when I screwed around for hours and hours trying to get some piece of software to run are long gone: if the developer can't do his job properly, I'm out.
All I know is: with my TS-PC and v3 pedals it worked : assign the wheel and pedals in the settings, select drive, and have fun.
With my DD1 wheel and Heusinkfeld pedals it looks like : assign the wheel and pedals in the settings, select drive...nothing.
My hardware works perfectly with rF2, AMS2, R3E etc, etc. Kartkraft does not.
That's all I know. I don't really care why it doesn't work, life's too short to waste my time doing the developers job for him.
This time I've given up: I bought the rF2 DLC for 10 bucks, and de-installed KK until it supports my current hardware. That's it. Goodbye for now.