Getting Orbbec Astra Pro working on a Mac

Followed these simple instructions for getting Unity working with the Astra pro

After importing the Unity package and playing any of the test scenes I am not getting any input from the sensor.


1 - On the mac is it necessary to install OpenNUI for the Astra Pro to work?
2- If using Unity will the Astra Pro work ONLY with Unity 5.5 or can I use the most recent version?