Im using an external playlist which goes like:
"http://king-box.club...output=ts" (I am not writing it fully because it is subscribed)
SS IPTV was not able to play any of the channels here but they play ok on VLC.
I also tried to download the m3u file and put it on SS IPTV and had the same problem.
Seems like it is loading the link but it never plays.