Have the same issue. I’m running WP 3.9. Installed the plugin, set up everything for Feed-to-Post and clicked Fetch to test. It fetched some articles. But after some change on the website I decided to remove all the fetched posts (emptied trash too).
But after clicking Fetch again nothing happens. No posts. I have 60 feeds set up so there must be content.
It’s been over 24 hours with no posts. Checked cron jobs with Cron View too. Nothing suspicious so I’m not sure what else I can do. I need this thing to work.