I don't know if it is firmware problem or not, but when I try to play movies I'm not hearing anything but apps like youtube or Spotify work well.
to hear audio playing movies I've to keep changing audio tracks, fast forward, backward, etc. until Kodi or native media player decide to play audio well
I have 1.09 and play audio through hdmi in auto option selected
Yamaha rx-a850 receiver with 5.1 speakers