I am working on a new website for our local golf course. I just tested it on my Samsung S9 and on any pages other than the home page, the background picture at the top just shows a grey box. Everything else seems to work as expected. I had a friend try it on his older Motorola and it worked fine. Any thoughts what might cause this?

It is still a work in progress but any other feedback is welcome too.

http://hawleygolf2.coffeecup.com

I don't have any Samsung gear, but on my Iphone the background images display fine. Does Samsung, or that particular model, have any problems withy large images that has to be shrunk a lot? You could try with a source set of images, perhaps that works better. Just a 'shot in the dark', I don't know anything about the Samsung phones.

It looks OK on my Samsung Note 4. The video on the course page is wider than the page on my SS Note 4.