Spawnable templates can reference other spawnables and their levels in a sequence

Spawnable templates can reference other spawnables. These references will be unstable due to the nature of spawnables, and the level reference can lead to unexpected behavior. 

1. Create a new level sequence
2. Drag a cine camera into the sequence from the Place Actor tab to create a spawnable camera
3. Drag a basic mesh actor into the sequence to create a spawnable mesh actor
4. Select the camera and go to its details
5. Set Current Camera Settings > Focus Settings > Focus Method to Tracking
6. Set the Actor to Track to the spawnable Cube 
7. Save the sequence
8. Navigate to the sequence asset, right click it and select Reference Viewer

RESULT

There will be a reference to the current level. This indicates a reference to the spawnable actor in the level.