BUG: Absolute Posit. Mobile Menu Visual Inconsistencies on Publish

Hey guys, could I get some help on the following bug!

This is what the menubar looks opened in the editor:

However, on publish, this is what the menu looks like:

As seen on the highlight:

  1. Left and top borders are cropped by menubar, despite the parent overflow = visible
  2. Logo menubar when the menu is top position, despite:
  • the parent div of the popup being set to absolute/z-index 102 (topbar zindex 100)
  • the logo having a z-index of 100

Does anyone know what is happening/how to fix?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)