Featured Image Showing on all Menu itesm - not just MEGA MENU

Hello again…

I have an issue using the MEGAMENU.
If I add a featured image to page that displays on the NAV BAR, then it is showing above the menu.
For example, I have added a featured image to the CONTACT page:
https://staging3.wiseacupuncture.com/

It is displaying it above the CONTACT MENU Item.
How can I limit the images to be only those that are in Mega Menu drop-downs?
Or is there a way to use an image other than the featured image?

I am using the code/snippets as laid out in this support thread.
https://generatepress.com/forums/topic/add-imageto-mega-menu/

Many thanks!
John