I have the latest free download of ProgDVB Standard 7.28 version installed on my Windows 10 laptop. Under Settings/TV Sources(Advanced) it appears that I can only have 2 IPTV sources. If I try to add another IPTV source, using the +IPTV Client button, it simply changes one of the ones already set up.. Is 2 IPTV sources the limit on the free version?
I was able to fix the problem by renaming the ProvidersEngine.ini file, and then setting up the sources again. It created a new .ini file with the 3 providers.. I've always done updates from the previous version so there may have been something left over from another version which may have caused the problem..