Spinning this out to it’s own thread as was initially reported & lost within another.
I believe I’ve found an issue with the new player - at least this is the case for me on an Shield TV 2017.
It related to audio passthrough - I have historically disabled passthrough (even thou’ i would rather not) due to the audio sync delay on my amp when i pause/resume. With passthrough disabled, i.e. with plex/shield doing the audio decoding, audio continues immediately when i resume from pause.
It turns our that with passthrough disabled a lot of my media files are failing to play with the new player - as soon as i set passthrough to HDMI the new player works fine.
Player Log attached. fail-passthru-disabled.txt (56.7 KB)