Hi there,
I’ve developed a website in Pro last year and had this issue too. At that time you told this was a bug and the only why to solve it was to make a special menu for mobile devices without the subdivision of parent items and sub items.
Now on a new website I have this same problem. Is this still an unfixed bug?
I hope you can come with a solution. Because in the collapsed menu on mobile devices this solution makes the menu messy and not functional.
Hope you can help.
Thanks,
Debora