I started a new Unity project and imported Unity Core Assets 4.4.0. After importing I enabled XR in Player settings. The example scenes run fine without errors, but the application is only shown on the monitor but not the HMD (Oculus Rift CV1). Head tracking and hand tracking both seem fine, but somehow the application does not play in the HMD.
It is working completely fine with the previous examples in Unity Core Assets 4.3.4 but not with the new Leap Rig in 4.4.0
Should some other settings be changed?
Oculus App version 188.8.131.52188
Leap Motion 4.0.0+52173
EDIT: Unity 2018.3.4f1
Stuff I have ensured:
1. Enabling support for XR in Player Settings in Unity
2. Enabling unknown apps in Oculus
3. Building and running the application separately (same problem, app works fine on monitor but not shown in headset)