I currently have a website that works fine overall, but I've run into some odd behavior involving the mobile menu.

I currently have the logo and main menu in the Header position, which is set to be sticky so it is always visible when scrolling. The mobile menu displays fine when at the top of the page, but when I scroll, the Header band with the logo sticks as expected, but the mobile menu scrolls off.

When I scroll below the video banner, a tiny hamburger menu is visible at the top left corner of the screen, below the Header. This tiny menu is sticky. I suspect it's been on the screen all the time, but was covered by the video banner.

Obviously I don't need two hamburger menus, so I need to find out how to fix this double menu situation. I only want it to display on mobile.

Thanks.