Just as an update the problem is still present. I recently bought a Tartarus Pro and the only way to make it work correctly is to turn it on when I'm already in game. All the other solutions don't work for me. I tried to clear the left column but everytime I restart the game with the Tartarus connected it gets filled with default controls so no luck there.
I also opened Device Manager and disabled the XBox Controller entry (it was the Razer Tartarus) as adviced on another forum but nothing changed and the issue persisted.
I don't want to disable the analog function because then I could have bought the Tartarus V2 so the only solution is to turn off the device, start the game, and turn it on again. It is some sort of check the game does when it starts but the devs seem to not care about it anymore.
When I say analogue function, I believe it only disables treating the 4 thumb directions as an "analogue thumbstick". This is what triggers the game to think that there is a controller connected. The analogue function of the keys themselves should remain unchanged.
