CWEB wrote:Is this perhaps a flaw in the demo set or has something gone wrong with my download?
I don't have experience with the sample set myself, but a sample set wouldn't install at all if there was a problem downloading it, so the issue you mention can't be due to that.
The only thing I could suggest would be to check that you haven't accidentally disabled multiple releases for that particular rank on Hauptwerk's 'Organ | Load organ, adjusting rank audio/memory options/routing' screen.