I can't cycle DSP Programs (Drama, Sport, Action Game, etc.) or surround decoder (DSur, neuralX, Neo6:Cinema, Neo6:Music, etc) during a PCM youtube/spotify/etc stream coming from LG (Oled CX) WebOS5 app. At least you can cycle two or three programs, then STRAIGHT mode is always engaged and DSP Program (or Surround Decode) is not applied.
Same stream coming from another source (eg. Sky Q Black Box) does work.
If you check with the webapplication ([ Ссылка ]) the program are actually cycling, straight remains off (although on the display it is written) but you listen always with same effect.

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