I finally solved this by setting the site permalink settings to any of the standards on the settings page.
These standard items work:
Plain – /%post_id%/
Day and name – /%year%/%monthnum%/%day%/%postname%/
Month and Name – /%year%/%monthnum%/%postname%/
Custom Year and Name – /%year%/%postname%/
You just cannot use Name only /%postname%/.
Hope this helps someone.
