That’s because both pages need to have the Header overlapping the content. So because of that, in their page settings i changed the logo (to a lighter version), change the header text, and also changed the header position eg: https://d.pr/i/3mb510 .
This is happening because the Valencia demo is presented as a catalog, however you can disable this in Customizer > WooCommerce > Product catalog > Misc. and here disable Catalogue Mode.
The solution is very easy. Simply access Appearance > Menus, select the Main menu and at the bottom try checking the 2 options Main menu and Mega Menu YES eg: https://d.pr/i/40DWcR .
In the Find dealer page, yes, it’s happening because Store locator plugin is not configured eg: https://d.pr/i/HvTnRE . Here’s more on configuring it https://wpstorelocator.co/document/configure-wp-store-locator/ .