Strange possible bug with subtitles

Server Version: 4.123.2

App name: Plex for LG
Client version: 5.81.1
Platform version: 8.3.0

Subtitle type: Japanese PGS [Japanese (SDH)]
Audio type: Japanese 5.1ch DTS-HD Master Audio @ 3361 kb/s - DTS-HD MA 5.1

At first, with these settings:
Allow Direct Play- selected
Allow Directed Stream- selected
Force Direct Play- selected
Burn Subtitles- Automatic
Everything was fine (Plex was playing the show with 5.1 audio with subtitles on), but after around 5-10 minutes of video playback, the subtitles suddenly disappeared. I then tried exiting the video and resuming the video from the point where I left off. The subtitles came back for less than a minute before disappearing again. Sometimes, restarting makes the subtitles come back and sometimes it does not come back. I’m not exactly sure what makes it come back and then disappear again.

If I use these settings,
At first, with these settings:
Allow Direct Play- selected
Allow Directed Stream- selected
Force Direct Play- UNSELECTED
Burn Subtitles- Always
The subtitles work throughout video playback, but the audio is no longer 5.1.

I have tried different combinations of these settings, but direct play must be on for the audio to be 5.1 However, that makes the subtitles inconsistent in when they appear and without touching the remote after starting a episode, the subtitles are usually only there for at least a couple of minutes.

How do I consistently get 5.1 audio with consistent subtitles that don’t disappear?

Possible to get the smart tv logs after playback starts and the subs disappear.

Which model LG exactly do you have?

The model of my TV is OLED65C3PUA (LG C3 65 inch).

I have sent you a private message with my logs. The log file I sent was “Plex Media Server.log.” Tell me if that was the correct log and if you were able to receive it. Thank you.

Also, do you have an idea why turning off direct play and direct stream results in DTS turning into stereo?

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