Text Selection is blocked on Front Page

With Catch Fullscreen, text selection is normal, but when I upgraded to Pro, text selection is disabled on the Front Page (but not others!) Other themes don't have this issue. I have tried disabling JavaScript in the browser, upon which the text is selectable again. I tried disabling most plugins, but it didn't change things. What does the Pro version have, that the Free version doesn't, that would make text on the Front Page not be selectable?