My roommate and I are seeing the same thing on an LG CX and a 2018ish Samsung smart TV. With SRT subtitles enabled in Dr Strange 2022 (4k HDR HEVC), if you play it for a short time or jump ahead/back around the middle of the movie you will get this transcoding error and the stream will die. Easily reproducible, does not appear to happen on an android tablet or chrome browser.
              
              
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