Fibaro Wall Plug/Switch, KWH sensor gives no value

Hi all, my first post as a brand new Vera Plus owner.

Have installed the unit incl RFXtrx module to pick up all my temperature sensors and NEXA switches, all good!

Purchased a Fibaro Wall Plug with integrated KWH sensor.
THe plug is running OK and I can see the Watts reading for the switch itself, but the second sensor “Fibaro Switch KWH” does not give any reading. Is there anything I’m missing to get it to work?

I’m using Home Assistant and I can’t read of the W/KWH value from the switch itself, only control it on/off.

Attached is a screenshot from Vera Plus