"MotionController (r) trigger" or axis, not working for GearVR controller in 4.17

Does anyone have any advice for accessing the motioncontroller trigger? The unified motioncontroller (r) trigger, and axis aren’t working for GearVR in 4.17

Hi, I’m using Oculus Rift (VR) but the y-axis of my right motioncontroller isn’t working either. Weird enough the X-axis does work and they also both work with downloaded VR-games. I’m curious if it is the same thing. My Y-axis output value is always ‘0.0’.
I still have to test the right trigger… once my Y-axis starts working xD.
I’m on UE 4.18