you need to go into your sound setting and configure the default output and make sure the rates are selected exact to what your computer is sending outbound. if you are using a dac with a usb input, use that connection as its alot easier. then in APO ontop of the selection bar up top you can select what device the APO controls. that should solve the issue. just make sure your bit rates are set, and the devices are selected as needed. APO also has a app that i think allows you to setup native control if im not mistaken. if thats the case make sure you open that app up and select the items its meant to control.
