Subtitles not displaying on Kodi on Android TV

I have just bought a Sony Android TV, and installed the Kodi app. Everything is working fine with playing movies and all, but I have one problem and that is that the files that have srt or any other formatted embedded subtitles are not playing the subs. Not only that, the skin that is playing the movie does not have an option to turn of or on subtitles or even to select them.

Can anyone assist me on how I can resolve this? I only bought the TV yesterday and installed the app, so I'm assuming it is the latest version.