You are not clear enough. Are you saying that Cubase and Nuendo - with SKI installed - will crash the computer if you change input connections? Or are you saying that you have the iC Pro app running when this happens? Another thing? When you mention that this happens in Nuendo… what can the iC Pro app control in Nuendo and where does it list that SKI is installed in Nuendo?
So riddle me that please and maybe somebody can be of some help.