Endnote X7 will not import individual PDFs

I’ve been trying to import new references as I read them, but so far the only way to get them into my library is to do an entire folder import or manually create the reference. When I click on import file and run through all the menus, I click Import and nothing happens. The window closes, but the reference isn’t there. If I reimport the entire folder and just discard duplicates, it will add the one file I want. Why can’t I import just one file?

Have you remebered to choose PDF under “Import Option”? This is done automatically when importing a folder, you have to do it yourself when importing a single file.