I have just purchase the Expressions Pro 4 and was using WME9 with my Logitech C920 with no issues but when I tried to configure it as my live source in Expressions, I receive the error "unable to create device. it may be in use or not functioning."
If there's a fix for this that would be great, otherwise, we can't afford new equipment so I'll have to return the software and purchase a diffferent one.