I have a separate power meter tile for this switch that will not display the wattage on my dashboard. In the devices tab I have enabled the automatic power reporting, and saved the preferences. When I return to the dashboard, and turn on the switch I still see no power.
Just to confirm, it does show the power draw from the device’s status page, right?
If you use an attribute tile and select 'power', do you see anything? I was always under the impression 'Power Meter' was for things like solar systems or the utility company meters. I'm probably wrong.
Just tested and verified what @bjcowles said works.