we are currently running OJS 3.2.1-1 and are very happy that there is now a responsive top navigation bar in the default theme. However, we have the problem that it is not possible to expand the submenus if the mobile version of our website is displayed.
So for instance, on our website, you can click on “Current Issue” in the mobile version of the navigation bar (a menu item without submenus), but you cannot expand the menu item “About Us” into its various submenus.
Here’s our website: https://www.prokla.de/
We are grateful for any help, thanks in advance!