I have a new iMac with Radeon Vega 48 graphics. I have downloaded AMD Pro Render and installed the plugin to Blender 2.79. I get an error stating that this AMD graphics is not fully supported. I see from testing that any volumetric rendering fails. I also see that the feature set in the documentation does not match the options in the software (example see attached). This is allegedly the top of the line graphics engine for an iMac. Am I missing something or is my new graphics engine from AMD not fully supported by this AMD software?