[Varstahl]

Well, some of the settings (like Original) don't quite work, and even if they do they wouldn't play back in the language you may suppose. You need to specify pt_BR in Kodi Player Audio Language. As for subtitles, there are different settings, for example you might use off to enable Forced Subs which only shows subs when they're talking in a different language from the main audio language, or to translate text shown on a wall, and similar things. In order to always show subtitles, while playing a video, you must enable them and then go to "use these settings as default".

That's all Kodi standard behaviour.