@pfunk42529,

You may want to actually map out how your wires and fixtures are all connected. In general, you will only see success with a smart switch if all the wires are used. It sounds as though your wires may have already been repurposed, so it is even more important to verify all the wires since you do not want your power to leak onto your home's neutral wiring.

You will also need to make sure that however your power is being provided that it passes through the switch, prior to the fixture. If your power arrives at the switch through the fixture, the switch will not work properly - especially since the switch is not able to stay powered for its smart connectivity. Also, for most smart switches to function, they will need to have their own neutral connection to help maintain a consistent electrical current.