I am using Cesium for a university project. Everything is working perfectly, however, I wanted to implement sensor cones. I saw that you have functionality for this in Cesium ion so I created an account and an access key. Also I have added the access key in my project using Cesium.Ion.defaultAccessToken. When I try to create an instance of RectangularSensor I get the following exception: “Uncaught TypeError: Cesium.RectangularSensor is not a constructor”. Could you please tell me what I have to do in order to make it work. Thank you in advance!