OK,bit behind on this as was last using joomla at 2.5!
I have a new joomla install on my site
www.in-2-deep.com When using the youtube player in the slideshow position, my menu disappears and also I noticed that the date and info bar that is normally at the top of the page is now at the bottom. Everything works fine as a slideshow, its just the youtube player thats the problem
I am using Joomla 3.8.2 and php 7.0.25 if that makes any difference.
Ollie