Hi,
To get head tracking working, you will need a Camera (with a properly setup TrackedPoseDriver component) and an AR Session component in the scene. Ensure that the volume camera has been set to unbounded mode - there’s no head tracking with bounded volume cameras.
I’ve attached a quick pic of how my scene hierarchy was setup. I started with the MixedReality scene, just deleted a couple of things. The cube is set to just LookAt MainCamera every frame.
