Subtitle comes out almost middle of the screen,, which is very weird, when using 'Google Cast' in Photo&Video app, even though I set it's position to -2(lowest).
Rather than position adjustment (+4 ~ -2), I think LG should fix this up ASAP like "bottom" "middle" "top" of screen, just as any other video player app.
I use LG 55UM7300.
Assuming this MKV file was ripped from DVD or BD (legally of course), when ripping you should have selected only the subtitle track you needed, #18, rather than the bizarrely large assemblage of all the tracks.
As far as I am aware, it is not possible to change directly on the TV. Go to the app and follow the instructions here https://www.trishtech.com/2016/12/stream-download-video-quality-amazon-prime-video/
please add airtel Xstream app in LG smart tv apps by which we can watch more content, As I am a airtel postpaid customer so they offer us free use of this app over which so much content is available but due non availability of this app over LG platform We are unable to experience it.
so I humbly request you to add this app also.