I've seen this on mine also. Only when using the new updated kodi 19. Audio quits working on kodi and other apps. Only fix I've used is a re boot of the TiVo box. That seems to fix it until you go into kodi 19 again.I got my TiVo just today and I started not having any audio when getting on kodi , and even when exiting from kodi , still no audio on any app not even youtube, did anyone faced such a problem and how can I fix it .