I have Windows 10 64 bit and I'm trying to play back a song I created in BIAB. Halfway through the song, it stops playing and I get a yellow pop up error "The default audio device has changed". Need help fixing this.

Also I need help with live recording a track over the BIAB file with my keyboard. I need specific instructions on how to setup my audio interface (Presonus Audiobox USB96 )so that I can play a piano part over my existing file. I have been able to get a signal in the BIAB with the piano but while playing it back, I can either hear the song file OR my piano but not both.

Any help would be greatly appreciated.

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