WW stopping export early - why?

miffy

[GivEnergy inverter]
Five or so mins before the export session is due to start, WW sends the commands to the inverter. WW sets the start and end times, and turns on Enable Discharge, etc. Perfect.

However, five or so mins BEFORE the end time, WW sends the stop commands. The export is ended early. Why?
The inverter was already told what time to stop, and it will automatically stop at the set end time. It seems unnecessary for WW to send the stop command before the actual end time. Why aren't the stop commands sent AFTER the end time? The export isn't going to overrun - the inverter knows what time to stop.
Here is an example log:

As you can see, the stop commands were sent early, at 18:56. It would make more sense if they were sent after 19:00, after the export end time.
What is the reasoning behind this please?

admin

miffy The inverter was already told what time to stop, and it will automatically stop at the set end time.

Well, this isn't totally true. The inverter also needs to be set back to Eco, and battery reserve set back as well. Otherwise your inverter can be left in a bit of a limbo state, see the thread here: https://community.wonderwatt.com/d/567-problems-with-export-via-givenergy

Our export end check runs every 2 mins.

But because of this limbo state on Giv inverters, we felt it was safer to terminate it before the export ends, rather than after.

Your point is still valid though, we could get this closer to the end time, eg 2 mins prior.

miffy

admin
Ahh, okay, that makes sense. I've not had that limbo state since you created the option for Eco on during export.
I carefully adjust the WW Settings and Advanced Settings to ensure when you calculate how long it'll take to export down to x%, it's as accurate as possible, but a shade stingy. Due to this, I've never exported right down to to my target of 30%, but it stops earlier, at 32%.