I figured out the answer to this issue!

You need to change method (Under Octane Renderer Main menu) from "Resend only updated" objects to "Send all scene data"

Worked for me anyway!

Please share this solution if it works for you, as it was driving me mad!!

Hi there,

Im using Octane render in C4d and trying to hide the HDRI Environment but show some footage on the background layer.

I need to camera match a background plate so will be importing footage and matching lighting/angle etc.

Turning on/off the Alpha channel and Keep Environment tags under ...