The problem is the following:
When validation fails on the Insert page, users are redirected to the FailedValidationPage, and when users click on the "No" button in that page they are sent back to the Index page. That "No" button is supposed to activate the Logout behavior, but when the user Logs in again and goes to the insert page, the fields in the Insert page are still populated with the data previously entered. In other words, the Logout Behavior is not terminating the Session.
Thank you for your attention