Reverse flow of current and high reactive power

Hi,

I have recently commissioned a 10kW site with 400Wp Axitec Half Cut mono perc modules and 10kW Sungrow inverter.

In the solar meter there is a reverse flow of current in phase Y and sometime in phase B and the power factor of the respective phase deteriorates to 0.1 to 0.2, also in the solar meter the real power is coming out to be 0.65 times the apparent power and avg power factor of 0.65

Have also changed the inverter but the same issue persist.

Also, the parameters of the meters have been checked using clamp meters, net meter and Inverter readings