Discharged 100 to 0 for no apparent reason

@TheDragon (GivEnergy) my system has been running well for the last year but today it played up - the batteries charged to 100% then around 15:00 started discharging / exporting all the way down to 0 and now waiting for sun/cheap period to recharge. . Can see no reason why it has done this, can you investigate.

The only thing that happens around 15:00 is an automation that sets % to charge to during cheap rate hours but this has been running happily for more than a year. The API call to set the % to charge was successful

For info while it was near 0% I updated the inverter and battery firmware and it is now calibrating
Inverter is CE2029G044
Many thanks
Dave

locked Yesterday the inverter loaded 535-535 & 3013 on one script cycle.
The inverter is on the latest publicly available firmware.

The next release, a totally new firmware NOT an upgrade, will be made available, via opt in/out page. It is NOT an auto update option

TheDragon (GivEnergy) I only triggered the firmware updated after the problem of the battery discharging from 100 to 0 for no reason.

I am concerned that after working well for over a year the battery discharged from 100 to 0 when there was very little load and would like to understand what caused this ?
Cheers
Dave

TheDragon (GivEnergy) Hi - sorry, what's the distinction between the 2?

By opt in/out do you mean it'll be available to take via the Portal? (I always kinda thought of that as the auto update option - as opposed to doing it manually via USB).

Thanks