Hi Adrienne
I'm getting the same behavior, too, when I preview a video I inserted inside a Labeled Graphic block in Mobile mode. This seems to have something to do with the course being housed in a "framed" mobile window. Somehow, the video is not launching when clicking on the full video. The odd thing is the full screen works on Tablet Preview.
I'll write this up with our engineers and update this thread as soon as I hear more from our team about this.
In the meantime, you may use the Rise share link to view the course in mobile.
