Z-Wave plug won't show up with a kWh reading

[Z0eff]

For the Nth time my Zwave network ended up with several Zwave plugs that only seem to relay Zwave messages rather than actually send out a kWh reading. Usually this happens after a reboot of the Raspberry Pi, which in this case was needed because I updated Rasbian and flashed the firmware. In the past I fixed this by resetting the entire network and starting from scratch. This is what I set out to do today as well.

This time however multiple plugs only show up with a fraction of the many "Devices" that should show up in the Setup -> Devices page. One of the HANK plugs completely died one me as I was adding it to the network. I've managed to get the 2 remaining HANK plugs to show up with the kWh reading by excluding and including them several times over. Moving on to a Qubino 16A plug, the Devices it adds to the list again keep changing as I include and exclude it but this time I can't get a kWh reading to show up at all. =/

Here's what my Devices list looks like after including/excluding the above mentioned Qubino plug 5 times. Notice how it shows up with a different amount of Devices each time and different ones to boot.

(The sheer number of entries is because I've had to redo the entire network several times over the past year)

I've tried using the Include/Exclude fuction within Domoticz and the physical button on the Z-Wave stick. Also tried a full reset of the Z-Wave USB stick several times already in the hopes that perhaps the dead HANK plug messed things up or something similar.

Been working on this for about 3 hours so far, without getting much progress. Any help would be greatly appreciated.