i use an internal movie player. I think the problem is like this. When using a Mag i can change also subtitles. Now i use an android box having also a mac address.
maybe i used the wrong internal player and i have to change it for another player from Google play. or i not use the mac address?
not sure whats the best because i never used m3u
It should work with API xtream code. I think you are using wrong settings. But. Do you have Rapid iptv from the forum? Maybe you don't have movie with subtitles in your subscription!
My best alternative for u is to try GSE iptv or Perfect player.