PV Inverter Power is calculated as from grid while charging

[Mark10]

Hi,
could someone explain to me why in my case the Phase L1 is calculated as consumption from grid while there is enough Power from PV inverter (venus-os_dbus-mqtt-pv)?
Setup is Shelly Pro 3EM, CerboGX (v3.60~80), Multiplus 2 (L1), PV Inverter L2 and L3 (venus-os_dbus-mqtt-pv Pos. 0).
Thank you.

[Mark10]

Found out under System data that PV Inverter is shown on ACin2 wich for my understanding should be ACIn1.
In config.ini position = 0 is set.

How can I switch to ACIn1 ?

[mr-manuel]

venus-os_dbus-mqtt-pv/dbus-mqtt-pv/config.sample.ini

Lines 37 to 41 in 2528fd4

	; position (connected input/output) of the PV inverter
	; 0 = AC input 1 (select this if you don't have a MultiPlus or Quattro)
	; 1 = AC output
	; 2 = AC input 2
	position = 0

[Mark10]

Thank you for the hint.
As mentioned position = 0 results in "PV On AC2In".
Also tried the other positions:
position = 0 => System data => PV on ACIn2
position = 1 => System data => PV on AC Out
position = 2 => System data => "nothing"