External Generation on QCells Inverter

[HubsiKU]

Hello,
I have an qcells inverter with battery and an small solaredge inverter.
Now the solaredge inverter is tracked with an smart meter on the q cells inverter as external generator.
In the q home app correctly shown, the Generation and the houseload
In the modbus application:
But if the solaredge inverter produces more than the actual house load my house load shown negativ. That sjown me that the modbus not get all information right.
How can i fix that?