Not sure what to say, you can open the server log file and see the MDE: lines it clearly is saying that direct play is disabled, this is due in part to the audio being transcoded to AAC
it looks like the video is being ‘copied’ (not transcoded) and the audio is being transcoded to aac
May 21, 2020 20:23:50.468 [5557] DEBUG - Streaming Resource: Reached Decision id=465 codes=(General=2000,Neither direct play nor conversion is available. Direct Play=3000,App cannot direct play this item. Direct play is disabled. Transcode=4002,Not enough CPU for conversion of this item.) media=(id=893 part=(id=893 decision=none container=mkv protocol=hls streams=(Video=(id=2401 decision=copy width=3840 height=2160) Audio=(id=2403 decision=transcode bitrate=774 encoder=aac channels=6 rate=48000))))
again, I suggest change the AUDIO stream to DD or DTS
you can do this before the movie starts (pre-play screen) or during the movie (bring up the player pop up, navigate to the audio icon, choose a different audio stream).
