Menu Dropdown Problem (Z-Index?)

There seems to be a problem with this plugin in conjunction with main menu (Elementor). You cannot select any menu items from a dropdown which overlap the image.

You can see on any product page, e.g.

https://mickleburgh.co.uk/product/fender-american-pro-jazzmaster-olypmic-white-rw-electric-guitar/

Using the dropdown on the main menu e.g. “Percussion”

– Any of the lower menu items, which overlap the image area, cannot be selected. The image zoom fires instead.

Eg you cannot select from the main menu “Percussion > Orchestral Percussion“.

It’s like the Image zoom has a higher Z-index than the page content?

The page I need help with: [log in to see the link]