So I bought the game yesterday and installed it today. Whenever I try to assign a button to an action in the settings, I get prompted with a window saying "Multiple inputs were detected. No action was assigned." therefore I'm not able to even upshift or downshift at all. The controller I use is a Stadia. Anything I can do to solve this issue?
How many devices you've on? USB-hub? If you've a couple of devices switched on I suggest to switch them off one by one to see which device interferes.