I have tested the plugin with various themes and it works great. When I switch to my current theme at http://www.thedockage.com/post-dockage/ upon submitting the information, it reloads the page and removes the information that was in the form.
It will do the same action when editing a post. It reloads the form with the information prior to editing and reloads the page.
No error messages are displayed when the page reloads.