There are a few best practices you should employ if you notice that Swivl gets "stuck" facing a wall or whiteboard.
Remember, Swivl's primary marker is being tracked by maintaining a line of sight with the infrared technology located on the front of your Swivl robot base. In other words, your Swivl must be able to "see" the primary marker in order to track efficiently.
Whenever possible, wear the primary marker around your neck, high on your chest (use the lanyard slider to adjust it higher or lower) or you can purchase a marker clip in order to affix it to your top.
Keep Swivl located centrally in the room and at least 4 feet away from any walls or whiteboards, if possible. The ideal placement is shown above, using a floor stand to avoid obstructing students' views.
Finally, if Swivl is panning upward and downward erratically, go to the App Settings menu and turn Auto Tilt OFF. Then enable Tilt Correction mode (not available for Android users currently) to see if this helps.
If you're still encountering issues due to the layout of your classroom, contact support so we can assist you based on your environment.