Multiple camera layers in Unity using SteamVr

Hi all,

At the bottom of this page, if you search for "Camera layering:", this is described as fairly straight forward:

https://github.com/ValveSoftware/openvr/tree/master/unity_package/Assets/SteamVR

I can get my 2 cameras drawn to the hmd, but the depth information seems to not be taken into account? In the standard Unity preview window I see my desired result, but in the hmd the depth of the cameras is the wrong way round.

Has anyone solved a similar problem or can point to...

Multiple camera layers in Unity using SteamVr