Hi! I just tried to add a new page as a sub-menu on my Navigation Menu. I dragged and dropped the page under the appropriate parent menu, but when I "saved menu" it just shifted everything under that category back to the left. Now my navigation menu is entirely messed up and I can't figure out how to fix it. The drag and drop feature is not working when I try to save menu.
I have deactivated all plug-ins, tried changing the theme, and nothing seems to help. Any advice please?