I have an LG Smart TV 55UM7400 and I downloaded the Movistar Play app. I am streaming a channel and I can choose the language audio (english or spanish) and also the english or spanish subtitles. BUT for some reason the SUBTITLES do not load. I streamed the same channel on the movistar play app on my iphone and the subtitles worked fine!. Is there any configuration I need to do on the TV ?? I need some help. Thanks !