Accessibility – NVDA not reading text in navigation using arrow keys

am facing an issue with NVDA screen reader where in its not reading the links or text in a navigation.

Link - https://codepen.io/yogesharora28/pen/WNNPQKV

Am using arrow keys to navigate in NVDA, and if i move from a sub menu to next menu, for e.g. going from "home" and reading the items in its sub menu, moving next to "About us" menu, it wont read "About us", instead reads the sub menu items of "about us" Any idea what could be going wrong?