I have found another user (A friend) experiencing the same issue:
{"_links":{"self":"https://api.twitch.tv/kraken/streams/loki_","channel":"https://api.twitch.tv/kraken/channels/loki_"},"stream":null}
Streaming at this moment: http://i.imgur.com/KEl0jvL.jpg
Mine is still broken, I had to make a completely new account “viionxiv” and that works flawlessly. Seems some accounts just do not have the correct permissions or something.