it seems like this is happening globaly, so it might have nothing with the providers. it would be weird if all of them all around the globe changed something at the same time.
i was downloading a bunch of episodes from my local tv provider the other night. everything was working and suddenly it didn't anymore. nothing would analyze anymore and i now get an error 6007 from my provider (not from streamfab). this also happens with other similar (same) software like streamgaga or flixfab. it also happens on multiple sites that use DRM (widevine). some of those sites say that the browser is incompatible.
so, at some point 2 nights ago they all stopped working.
with some sites, i am still able to use mp4decrypt with proper keys, however, i cannot decrypt some videos from VOD that used to work just fine.
something did change globaly. i thought i would find more info here, but i can only confirm from your comments that this is some kind of a global change. still don't understand what it was.