Problems with Ps4 Controller/Cant move forward

[RsKnZ]

Yo Guys i need help. I bought the game and played like 2-3 hours with my Ps4 Controller. Everything was fine. Then I started a private with my friend. After the 6th Checkpoint I crashed and pressed the reset button. From there on, i was not be able to move forward anymore. i dont know how and i dont know why, but neither with R2 nor X could i move forward/hit the gas. My driver just started rolling back the whole time. I restarted PC, disconnected the controller, looked at the steam controller settings, removed the controller from the device list but nothing helps.
Can someone help me?

Edit: R2 and X work fine in the menu. Only when i start a "Race/Trial" both keys dont work anymore.