Subtitles Automatically Turning On When Disabled

Server Version#: 1.26.1.5772 (LinuxServer Docker on latest Unraid build)
Player Version#: 9.2.0.32520

I’ve been having an issue where subtitles randomly turn on automatically when watching shows via Plex. This has occurred with three different clients: Shield Pro 2017, Shield Tube 2019 and Samsung Galaxy Tab S7+.

Symptoms:
When it happens, it will typically do English subs, but sometimes do French or Spanish. When I go to the subtitle menu during playback, it will usually say that no subtitles are chosen, so I have to select one and then go back to “None” in order for them to turn off.(Only once has it actually said a subtitle was selected when turning on automatically) A few times, it has also chosen to have the subs at their smallest setting. This isn’t consistent at all, it will happen on one episode and then not the next.
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Attempted fixes:
I’ve turned off everything I can find on the server regarding automatically choosing subtitles without any luck. I can’t find anything on the client-side that could fix this, but please let me know if I’m missing something.
I’ve reviewed the logs to see if I can see it turning subtitles on or something without any luck.
I’ve rebuilt the server twice by deleting the Docker and renaming the old data folder and creating a new AppData folder for it each time.

Let me know if there are any other details I can provide and if you would like my log files.

Thanks in advance!

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