Menu items disappearing

Hi there!

First, thanks for an awesome theme – I’ve been using it since late December and love it!

I just recently updated to the new version, and since then, my menu has gone wacky. Now when I click on an item in the navigation menu, the title disappears. Here are screenshots:

Here the word “Home” should be appearing to the left of “About me”

Then here, you see that when I navigate to my blog page, “Blog” now disappears from the menu.

This happens every time I move to one of the pages in my navigation bar. Whatever page I’m on, that link in the navigation bar disappears.

Help?