It also happens on LG TVs.
Additional information:
It occurs at the end of the stream. Approx. 1 min left.
It occurs only, at least for me, when the stream has subtitles (text subtitles) marked as FORCED, and probably in use. Could you also verify this, guys?
From my tests, the client is using direct play/direct stream, and the error message is related to transcoding, which is not happening, in my tests.
As detected by @hyperion306 in the other thread, something changed in the Server from 1.31.3.6868 to 1.32.3.7162.
For testing, Will recommend using Daily Anime with English subs.