One of my LG TVs has the audio tracks incorrect

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Could you provide a mediainfo output for one of the files in question? Jellyfin and ffmpeg logs (Dashboard > Logs) would be helpful as well. Recreate the issue, grab the Jellyfin log snippet from just before recreating the issue as well as the ffmpeg log that matches the timestamp and/or media name. You can remove sensitive info like public IP addresses, but don't go crazy with redactions.