Fmod + Unity + GVR : GVR Listener settings in Fmod

Question

We’re working on a VR project using Fmod, Unity and the GVR plugins. Here is our problem : in Fmod, when setting the GVR Listener on a bus that is NOT the Master bus, we get an error in Unity: « Google GVR Listener not found in Fmod project ».

In Fmod, is there a specific way to insert GVR Listener on a bus that is not the Master? Also, we went a bit through FmodGVRAudio.cs and it seems that it’s returning Null when looking for ChannelGroup in any bus but the Master. We use Unity 5.6.1f1, Fmod Studio 1.09.04 and the latest version of GVR plugins for Unity.

Thanks!