Like the others in this thread, I'm still having issues. I ended up parking this issue out of frustration and decided to try again tonight. I'm running the latest Unity2018.2.8f1 & Octane V220.127.116.116
The behavior I get is that Unity immediately stops working and crashes when you try and 'Load Octane'. It seems to die when Octane tries 'Activating Octane License.'
I have to assume at this point that running this in an Azure VM (even with the seemingly appropriate specs - see my previous post) is just not supported.?? It would be great if someone could confirm this so I could stop spinning my wheels. If this mode (running in Azure) is not supported yet, that's fine.
I did note that on the PBR Setting page, the sections for 'Devices' and 'Out of core' were all greyed out. I wasn't sure if that was normal behavior.