Header reveal on scroll up is not working on desktop

Hello again ?? I’m building a website using mixure of nimble builder sections and hueman theme. I want to use hueman theme header section but I found out that the reveal on scroll up it’s not working. Could you please look at it? I sending you a screenshot of my settings. If I enable topbar menu it’s working good, but not if I only have Header. https://imgur.com/a/EeCeaLz

And also it would be nice to align menu items to the right side of header. I would really like to achieve a nice sticky header as you have it on your https://nimblebuilder.com/ and https://nimblebuilder.com/landing-page-one/ page. How can I do this?

I would be really thankfull if you can help me and tell me how to do this.

Regards,

Janez