Alexa and Contact Sensor - cannot read value

I am using a Mkr WiFi 1010, and I have created an IoT thing with three properties. One is a Smart Home Light, one is a Smat Home Motion Sensor, and one is a Smart Home Contact Sensor. I can control the light, and view the Contact Sensor and Motion Sensor values in the dashboard (I have a switch connected to my board to control the door sensor and motion sensor). And I can control the light (turning an LED on and off) by saying "Alexa turn my light on." or "Alexa turn my light off.". But I cannot get Alexa to return the status of the Contact Sensor (or Motion Sensor). My Contact Sensor property is named "DoorStatus". When I say "Alexa is my DoorStatus open?" Alexa responds with "Hmm, DoorStatus is not responding." Alexa replies similarly when I ask about the Motion Sensor who's property name is MyMotion.
Am I just not asking the correct question, or is this an issue with how the Arduino Cloud has setup the Contact Sensor (and the Motion Sensor)?

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I was looking at the Arduino Alexa Skill on Amazon.com, and I saw this:

WHAT ACCESSORIES AND SENSORS ARE SUPPORTED?
Currently, the supported sensors are:

  • Temperature
  • Motion Detection

So, trying to read a Contact Sensor may not be supported at all?