OVRInput with Vive

Hey there.
I'm trying to get input from the Vive controllers following this guide
https://developer.oculus.com/documentation/quest/latest/concepts/unity-cross-platform-dev
Tracking works nicely for headset and controllers.
Both openVR and OVR are added to the Unity XR settings

but somehow I only get "false" when polling buttons even though the controllers are detected nicely 
OVRInput.GetConnectedControllers() report LTouch ,RTouch or both Touch

I've tried these methods  
OVRInput.Get(OVRInput.Axis1D.PrimaryHandTrigger, OVRInput.Controller.RTouch);