If you go the the URL below you’ll see a page created w/PageBuilder. The middle column, WISH LIST ITEMS can be built and deployed, but once saved you cannot edit that item again. When you go to edit (and it happens regardless of whether you use the SiteOrigin Editor, Visual Editor or Text Editor) you get the little circle icon spinning but you never see the editor again.
I’ve tried this on Windows 7 using IE, FF and Chrome. No difference.