Region Not Displaying on Mobile Phone

I am modifying the Spirit Home page layout which displays by default when I open the website.
I have placed the same picture into two different regions and given the backgrounds exactly the same parameters. One of them appears on my mobile phine (iPhone 6s+) the next one doesn't.
I have checked that all the parameters are identical it just wont work - however if I turn the phone to landscape it works.

Can you have a look please?