I am installing "Sapphire Render Unit" which comes with Vegas Pro 15 Suite. But during the install, and when I am asked to enter the activation key, I am being told that not all Sapphire plugins are licensed on this machine, and I have to select one of two options; to remove all unlicensed plugins or leave all plugins installed.

I am confused!! Why I am getting this notification? I though Sapphire plugins comes with the suite version! Can someone explain this please?