Mobile / FLStudio Groove uses the default audio device. In FLStudio Groove on Win8, it is possible to change this setting in the Windows mixer, if you have more than one sound card and want to send sound somewhere ...
details about your system and the problem on the FLStudio Groove / Groove Machine Mobile user forum
Make sure to first activate your app on our servers, be using the registration option inside your app.
Image-Line Support Team ...