The problem with this solution is that when the “Audio Hardware Setup” option disappears from the “Devices” menu, so does it from the MixConsole racks! Therefore, I seriously doubt that you do this, since it is simply impossible. There is no Hardware option in the Rack setup dropdown menu!
This is a serious issue that Steinberg should look into, as it renders the MR816’s internal FX’s unusable (and thus zero latency monitoring, aswell). Having to reinstall the software and reboot the computer while the clients is waiting is doing har4m on Steinberg’s reputation aswell.