The issue is not actually with KODI but with Cloudflare, the DNS that resolves the links for streams from this provider. While the streams will not play from the Simple Client PVR, they will play from the Playlist Loader. The downside of the Playlist Loader (and VLC) is no EPG support which renders it useless for a large playlist IMO. The Cloudflare issue has been addressed with their support team and they say that a fix "is imminent". Until that happens, I find that TiviMate from the Google Play Store works fine with all playlists and might just be the best player for IPTV out there; it's highly customizable and out of the box will let you assign 2 EPG sources. I have playlists from 2 subs that won't currently play in KODI and 1 that does. I personally just prefer to use KODI as my media center of choice as I like the library aspect of it and interaction with Trakt.tv and a couple of addons.
Shouldn't be too long before KODI's PVR can once again stream all playlists.
Cheers.