Echo template main menu not collapsing on smaller browsers and ipad

I found a solution to the navbar modules shifting in another thread and was able to fix it.

However, the main menu on smaller browsers (ipad, etc) is not collapsing properly. In other words, the menu is always open and the menu items are still showing below the collapse icon and clicking the icon doesn't do anything except change from black to gray. See attached image. Is something not configured properly for it to work?

Thanks for your help.