Creative Cloud - not letting me run Substance 3D Modeler

I have full creative cloud subscription and work with Photoshop, Illustrator, After Effects and Substance Painter on an iMac and a MacBookPro. I have just started paying a second subscription for the Substance 3D suite. 

Substance 3D Modeler only runs on Windows - for the Oculus headset.

But when I try to run Modeler on Windows machine it wants me to log out of Creative cloud on one of my Macs - this might be OK if the Substance 3D software was actually part of the CC subscription, but it is not and cost extra.