I have this problem as well. Not only that, but once you experience the bug, it seems to affect other libraries that aren’t demos as well. I’ll try to do a bit more testing, but it’s rather annoying as I was really interested in the pipe organ but I’m reluctant to get it as I can’t really test it very well.
The problem with existing libraries seems to go away when you uninstall the demo. It’s definitely a bug.
BTW: Win 7 64 bit here, but, the problem also occurs in Win10 64.
