Focusrite products are known to sometimes have issues in Windows and can do odd things, though it does not happen with every system. It has more to do with the fact that Focusrite doesn't put out driver updates, so whatever is built into windows is what it uses, which sometimes can cause problems with other hardware. These same issues don't happen on Mac or Linux systems. Otherwise, Focusrite products will work just fine with Mixpad, but issues you may experience very well may be due to the focusrite and windows issues rather than any issue with mixpad itself.