So, I just found out the above happened. Apparently Enphase has upgraded the Envoy’s firmware from version 5 to version 7 somewhere on March 28. And therewith they did something to the lifetime energy production stat:
This drop from around 15mwh to 0.7mwh reflected strangely in my energy dashboard, actually showing a consumption of 15mwh in an hour.
I have no idea where to fix what reading. Hoping someone here can assist me. Please.