Clearing bq20z75 AFE_C flag

I cannot clear the AFE_C flag using the (2) Manufacturer Access writes with the PFkey values.  I was able to clear the flag with that method previously.  The first time AFE_C was set PF Flags 1 and 2 both contained 0x0100.  This time only PF Flags 2 contained 0x0100 and PF Flags 1  was clear. There are no safety status flags set.  The Battery Status register has INIT, DSG, TCA and TDA.