I am unable to view videos under " Ultimate Beginners Guide To DAX" topic.
In fact there is no playback for any of the videos. They error out and I get a message reading “Sorry, there was an error loading the video”. I have tried refreshing, changing browsers, clearing the cache…nothing works.
Mine is working fine. I would suggest that you send a message to customer support along with a screen print of the error so they know exactly what error message that you are getting.