I have a main menu for my blog and I've been running into issues lately. Every time I try to add a category to the menu, it doesn't seem to do anything. I select the box and click the "Add to Menu" button, the little circle spins and then disappears, but the category isn't added. I even tried saving the menu, thinking that maybe it just wasn't showing up in the UI but was really being added, and it didn't work.
I'm viewing WordPress in Chrome (the newest version) on Mac OSX.