As I mentioned, this worked! Hooray!
But, I have to make this change EVER TIME I do any editing on the Gallery page. Is there a way to permanently remove the banner thumbnail image?
I'm having the exact same problem. The image is also under the nav bar. https://www.deborahsstudio.com/gallery
The image is not under the nav bar or text boxes on the other pages on my site.
I've looked through site styles and can't find where I would have inadvertently selected this.