Could you clarify your recent response? It sounds like you've tried the same action with the standard Joomla module and it has the same behavior?
What about these two suggestions?
* What have you set the "Joomla Logout Redirection URL" option to in the SCLogin > Logout View Settings tab?
* A quick check on the permission of the page - when you're logging out, is the page that you're on a special or registered page?
-Melissa