DESS:Why is my system exporting between 11:00 and 14:00 when prices are at their lowest?

Hello everyone,
I have a question about the behavior of my DESS setup when using dynamic energy prices.
In the attached graph, you can see that my system exports energy to the grid between 11:00 and 14:00 (the orange hatched area). This happens exactly when the selling price is at its lowest.
Naturally, I would expect the system not to export during this low-price period, or at least not to charge/discharge in a way that sends power to the grid.
Situation:
At 12:00 the battery is charged to 80%, and between 12:30 and 13:30 my car is plugged in. During that period, no energy is sent to the grid.
I also notice that the forecast is always underestimated early in the day and then increases as the day progresses.
Right now, at 12:00, the forecast is already showing 58 kWh.
SMA 5000 TL 21
Battery 4 pcks of 16kw = 64KW
DESS Green Mode activated
ESS mode: , Optimized without BatteryLife
Minimum SOC:20%
Grid setpoint: 0W
My question:
:right_arrow: Why does the system choose to export during the lowest selling price hours?
:right_arrow: Is this caused by a specific setting, or is this expected behavior with DESS ?
Any insight or suggestions are greatly appreciated!
Thanks in advance!