FAQ - Ambient Light Sensor & Site Conditions
If you’ve only selected scenes or script in the Lights - Switches - Scenes - Scripts or Night Lights sections, please continue reading. If you’ve chosen an entity in these sections, the automation should work as expected.
Sometimes, when setting the Ambient Light Sensor - Site Conditions to YES, the lights may not stay on, giving the impression that this option isn’t functioning. This issue often occurs when no entity has been selected in the “Lights - Switches - Scenes” or “Night Lights” sections.
To resolve this, ensure you add a toggle helper to the Scenes & Scripts - Toggle Helper section. This will help ensure the smooth operation of the automation.
Below is where you should add the toggle helper to ensure smooth operation of the automation:
Now, your selection of YES in the Ambient Light Sensor - Site Conditions should work and function correctly. 
Enjoy
Blacky 
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