Initial Issues

I’m building out a site in Moesia Pro and have a couple issues:
I uploaded a Home page photo at 1920x1080 72 dpi. It seems to be displayed in a fine grid of lines. Is that normal.

And now it’s not displaying at all. In the Customize…Header Image area it shows a button “Randomize Uploaded Headers” option but I can’t seem to change this. Is the theme trying to randomize images and the issue is that it has only one?

There is a dotted overlay over the header image which you can disable from Customize > Welcome Area. I assume that’s what you mean by grid lines.

Nope, the theme isn’t trying to randomize the images. You can have only one. Can you post a link to your website please?