Controller 4th axis not working!,4th Controller Axis not working!

The 4th axis is not being detected on unity. I am using an xbox one controller with windows 10.

Here's the input manager,

And here is the code,

 void Roll()
     {
         float roll = rollSpeed * Time.deltaTime * Input.GetAxis("Roll");
 
         transform.Rotate(0, 0, roll);
     }

However when I move the right stick, nothing happens! My pitch and yaw are both working so I am confused to what the problem is?

Thanks in advance!

EDIT: Using Q and E is working fine!