When we were recently testing a release we were about to give to the client the import function just sat there on the Upload And Verify File page and wouldn't go any further. In the end we gave them a slightly earlier release that was working, but wasn't quite as polished. Also, since then the client has been attempting to export all the data one their live site and import it to the stage site. The export appears to be done correctly, but when it comes to the import they get a page not found error. The file sizes are not that large < 1mb. Any ideas?