It is an issue specific to me as I cannot watch video or movies without subtitles.
Mx Player Plays any file I throw at it but on some of my movies will not display some lines of dialogue on the screen.
VLC has this same issue but have not fixed after I informed them probably 4 years ago.
Potplayer on Windows had this issue till I told them and they fixed within 24 hours .
I have posted this issue several times now on these forums and did get helpful response from members suggesting I should email details to support.
I have done this now on three occasions with absolutely zero response.
I think support is probably just a figment of somebody's imagination.
What is the point of advertising support if there is none.
Maybe they think it is an issue that 99% of users would not need fixed.
Anyway it is very frustrating.