The box " Display Site Title and Tagline" has been checked and the Site Title is visible in the customizer on my desktop. It is also visible when I inspect the elements using Chrome developer tools on my PC.
However there is a problem on my Samsung Galaxy phone. The bar across the top of the page remains blank and the Site Title is not visible (see attached screenshot). You can see this on our test platform: https://focusingonwildlife.com/test-platform5/
I can provide you with admin access if it will help.
How can this issue be resolved.