Hello @dexterlester any time you don’t see a sensor on the home page regardless of power/energy readings it means the sensor is not connected to the Vue module.
If you are no longer seeing a sensor listed on the Home Screen please unplug the sensor from the port for ~10 seconds and then plug it back in. If you can confirm that is it plugged in all the way and it is still not showing up, try moving it to a different port to see if the issue follows the sensor or if the port was the cause.