At some point an update stopped the featured video from working. I never changed the code but now I can see the video show up for a split second, than goes away. I am using this code
<iframe width="400" height="225" src="https://www.youtube.com/embed/dL9qln1V2mU" frameborder="0" allowfullscreen></iframe>
But I have also tried using embed shortcode for a YouTube Pro player I have and it won't read that, so I would love any feedback. Right now if you go to the home page - http://the30daysolution.com/ - you will see at the top on the left the video that should be available. I also granted support so you can feel free to take a look.