On IOS the mobile menu when you initially open from the burger, allows you to still and only scroll the main page which is on the right hand section, but when you scroll your finger over the mobile menu. If you then expand a menu item, then the scrolling behaviour switches to where it should be, scrolling of the mobile menu not the main page. Any thoughts on how to fix this logic? It seems the CSS is only loaded on the mobile menu after an event on a sub menu.
Can you please share URL so that I can check the issue.