I have the Charity template installed on a site that previously used a different template (so didn't start with a site shaper installation). However, I also installed a site shaper site elsewhere so I could recreate the module that includes the video player and text to the right as seen on the demo.
On full screen everything looks great. As you resize the screen however, the video just gets smaller. At mobile size, I have a tiny video and copy to the right, rather than a full width video and the copy beneath the video as seen in the demo.
I tried starting from scratch again - copied and pasted the exact code from the demo and just changed the link to the video, but I still did not get the expected responsive behaviour.
Hoping you might be able to see what is amiss. Link to my site is: http://bit.ly/2DjWw45