My Menu Got Screwed up and Now I can't Fix It

So, I made a new page and wanted to add it to my menu. I used Upfront to add it, then clicked saved element. When I exited Upfront, an entire category was gone from my menu (along with the 6 or 7 items in the nested menu). I went to the Appearance category in Wordpress to fix the Menu and noticed that all the categories were there now, they just weren't nested. So, I put them all back in order, clicked save and... they were right back to being screwed up. I tried this several times but whatever changes I make don't save.

I've also tried making changing to the menu right in Upfront, but this does the same thing. Changes I make won't save.