This is a problem I didn't have a month back or so. Recently my setup won't play files with DTS-HD sound which is 7.1. I've tried several files with 7.1 sound but they just won't start. The movie starts but freezes at 0:01 time stamp. I've tried reducing bandwidth in the plex app but it won't help, not even if I lower really much. I've also tried with/without direct stream and direct play but with no luck.
It is not a bandwidth problem, there are never any server speed issues and server and TV are connected via wire 1000 mbit internal network in my flat. Trying Chromecast 2 it struggles a bit but can play a similar file. Casting directly to the TV cast works flawless but I think that's because then the tv will output only stereo sound. The AndroidTV app will output 5.1 sound to the receiver.
My setup: Sony Bravia 55W755 (W705C) (Android 6.0) and I have a Sony STR-DN1050 receiver with 5.1 speakers. Receiver connected via HDMI-ARC.
Happy for any input regarding this. It should be a problem that has occured due to an update of AndroidTV-app, the TV or Plex media server. Any thoughts?