BQ40Z50-R1: BQ40Z50-R1 CUVC Bit triggering

Part Number: BQ40Z50-R1

Tool/software:

Hi

We are using a 4S1P pack designed with BQ40Z50-r1.

In this we have noticed that CUVC bit has been enabled but the battery voltage is 15V.This prevents the battery from charging and Discharging.

But in Enable Protection B, I have not enabled the CUVC bit  ,then how the fault has been triggered at this voltage level 3.9V/cell.

After sometime i enabled the CUVC bit and Disable the CUV_recovery bit  in protection configuration, The CUVC  bits get cleared and battery charges .

Suggest some steps to resolve the fault at the and to get charged the battery.