I guess Bulb may have been involved in the call they mention, but it’s worth remembering how hard people are working to get these things working before you allow your blood pressure to rise too much.
The top layer of meters in the pallet didn’t work.
And here’s why:
The manufacturers test the top layer of meters before they leave the factory. Typical good practice to make sure a batch works.
But under the SMETS2 security protocol, it seems that a meter which has been tested will no longer work – possibly never again.
The top layer of a pallet is over 100 meters - so this is a pretty big issue.