I noticed that within the Beaver Builder theme you output two navigations if the user wants a sticky nav. This raises a number of SEO concerns with the duplicate links being output on every page load. Why not simply use a sticky nav like bootstraps and toggle a class? See:
http://tympanus.net/Blueprints/AnimatedHeader/ <- a particularly good demo displaying how to toggle a class to shrink the nav - similar to how you are doing in beaver builder.
I’d love to see an update in the future with a more elegant solution for the sticky nav. Please let me know if you have any questions.