I`ve just discovered something very weird. Started with the layout of my blog yesterday and made some columns sticky. Was very happy with the outcome. Then I`ve tried out some more variations for the blog and the sticky columns didn`t work anymore. Their content disappeared into the upper right corner. 

I think I found what`s causing the trouble: The blog header type Featured Media under Heading. The sticky columns seem to work with the other blog headers, but not with this one (which I would like to use). 

Am I doing something wrong? Or is it a bug?

Would breally love to solve this problem. :)

Thanks!!