Tab view and ion-nav-view

Hey guys,

Quick question. I have a ion-tab directive inside of an ion-nav-view.
In one my tabs I have a link that takes me to a page that is not in the ion-tabs. At this point I no longer have access to the back button and the nav-bar has this property: disable-user-behavior and the back-button is hidden.
Any ideas as to why this happens?