I have noticed a bug with Plex web app.
I have a forced subtitles track (so, with few lines of text for the whole movie). When, "only image formats" settings are enable, some subtitles don't show up during the movie in some scene. And when "always" settings are enable, the whole of subtitles show up, including scenes where "only image format" settings don't showed up this subtitles.
It is a known bug ?
I'm hope I was clear. (I'm french)