How can I rotate ambisonic file in Unity3D?

Question

Hi,

I am trying to add 1st order ambisonic files into my unity project for ambience. I have tested this out with the sample project, using the ambisonic material provided.  At the moment I can hear the audio, however the sound files are not rotating based on the player rotation.  I have 3D positioning enabled in Wwise and a spatial audio listener in Unity.  Am I missing anything?

Thanks,

Dan