lazykins on "[Plugin: Responsive Menu] Replaced desktop menus appear but don't work"

Love the plug-in. I am using it with the Optimizer theme. I’ve found that when loading a page in portrait orientation with hamburger menu displayed, then rotating device to landscape orientation, the previously hidden menu appears but the submenus are not there and neither are the dropdown arrows, so you basically have to reload the page if you switch orientation. The menus are not being built, I guess? Has anyone found a solution to this?

https://wordpress.org/plugins/responsive-menu/