Thanks CWS,
I discovered this accidentally while working the issue…but now I have another issue that stops me from availing myself of this solution i.e. despite multiple full uninstalls and cleaning up all references to the Grand that I can find (including an exhaustive search and delete session in the registry) the application keeps using a previous instance of my telling it where to look for content to load some of the .vstsound files, thus making it almost impossible to use the application properly…
Additionally it appears to to making Cubase8.5 Pro hang almost everytime I use it LOL…