Hi Chelsea,
The first time I started the import I only saw the image library populate, then it crashed. The second time I noticed more images populating then a few pages (or posts), when I kept importing the third time I saw a message after importing that confirmed that some files were already imported and that importing is complete. That was the only time I saw all pages and posts. I only saw success through WordPress importer not the theme’s import option.
Hope that helps.