My SMETS2 electricity meter, an Aclara SGM1412-B, was fitted 03 April 2019 and has never reported meter readings back to OVO.
The Gas meter, a Uniflo G4SZV-1, was fitted at the same time works flawlessly.
The indoor display, an IHD3-PPMID / CA30111 Type 2, worked for gas and electric for a while but then this dropped to just gas. I've reset it using a process I found on another post somewhere but only the gas came back so no change.
On the electricity meter: The SW, WAN, HAN and GAS lights all flash once every 5 seconds.
There is an exchange with email@example.com trying to resolve this but this is quite frankly glacial in pace with scripted answers coming back which add little to no value. I'm playing along nonetheless.