I wonder if KempCubase ever got an answer to his question. I’m getting exactly the same message. “Cannot use USB port; it is being used by another application.” I’m running a new version of Cubase Artist 9.5, and I’ve installed the latest version of “Tools for UR44” including the latest drivers. Yet every time I open this dspmixfx software I get the same message and Cubase stops working. Can anyone advise, please?
