Fresh install of Joomla 4 with the Cassiopeia template and I just set the menu module layout to collapsible Dropdown.
Now the hamburger menu is there for mobile and it will expand but not close? It adds the class "collasping" but then immediately reverts to "collapse show". So looks like its not removing the "show" class.
This is the same if I set it as Default collapsible too. Any ideas?