Just in case anybody else sees this issue. I talked to ecobee support and there is currently a problem where these sensors do not report occupancy to the web app or mobile app, but if you look on the thermostat they are working. I am assuming that if they dont work on the web app they wont work on the remote sensor st app. Ecobee knows of the issue and is working on root cause / fix. Basically this does not impact all customers but it does impact some, like me!