June
Is S6 EP4 - EP6 were free to watch or they're for purchase from airing date? I am not sure if it was just a glitch but it did show they're free to watch until end of June but today they're now showing subscription required.
June
It is possible that they are now only available for purchase. Did you try restarting your Optik TV box and router then testing to see if it's still the same?