Close X icon not loading unless highlighted with cursor on desktop

Hey Forum users :wave:
Got an issue where I’ve created a slide-out hidden nav menu. All works fine except for when it is shown the X button for close doesn’t appear unless you highlight the text on the page (click-hold-drag to highlight). Once it’s been highlighted it stays visible when the menu is open and behaves normally by hiding when the menu closes too.
Any ideas?

The website is or click below for the webflow staging version

Here is my public share link: LINK