Plex app on LG WebOS issue: DTS not playing rear channels

Server Version#: 1.15.2.793
Player Version#: 4.17.3 (Plex for LG)

I’m using the WebOS app within my LG and using ARC to push sound to my AVR. DTS titles will not play the rear channels even though the receiver is showing 5 channel source. AC3/DD plays all channels fine. TrueHD does also, but per the receiver it appears that it’s being downconverted to DD.

Can anyone point me to why DTS titles will not play the rears? I’d rather not have to go buy a streaming device if I don’t have too.

Thanks!

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I haven’t checked my rear channels, but I’ve experienced something similar (and my rear channels may not be playing as well). If I am playing something with DTS, I get the dialogue through the front speakers, instead of just the center channel. Super annoying. If I uncheck the DTS option in the Plex App settings (under Audio), then it down mixes to AC3, I believe, and everything plays through the correct speakers. But, it sure would be nice to be able to play those movies with DTS and not have to down mix.

See this thread.
It includes Channel Check files with which you can test your setup. The files play white noise over one channel at a time.

Here’s what I experience with my LG when playing various audio formats:

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