Hi,
In that case, here are two ways to do it:
1. Move the Scene Portal to a child GameObject that doesn't have a trigger collider. (The main GameObject with the Usable component should still have whatever type of collider is necessary for the Proximity Selector to detect it.) Configure the Usable's OnUse event to call the ScenePortal's UsePortal method.
2. Or remove the Scene Portal, and add a Dialogue System Trigger set to OnTriggerEnter. Select Action > Play Sequence, and set the Sequence to: