Hi I Have noticed an issue when playing 4K files via Plex, if the file contains a DTS-MA audio track there is a very slight lip sync issue.
The Nas is a Synology, I did wander if the server maybe underpowered, but the video plays flawlessly just a very slight lip sync issue, just enough to be annoying.
Also the other thing I noticed when you rewind or fast forward it takes about three second for the audio to start after the video has.
Has anyone else noticed this issue