BQ24295: SYS dropping to 1.5v with no Battery

Almost everything is perfect.  Except... when there is no battery.

SYS is maintained at 3.7-3.9V as specified by registers

Except for an occasional glitch which wipes out my system :(   (Brownout detector trips at 2.5v)

The SYS rail looks like this:

These are my register settings

BQ24295 REG00 = 5E                              

BQ24295 REG01 = 1F                  

BQ24295 REG02 = 60                  

BQ24295 REG03 = 11                  

BQ24295 REG04 = B2                  

BQ24295 REG05 = BE                  

BQ24295 REG06 = 9F                  

BQ24295 REG07 = 4B                  

BQ24295 REG08 = 05                  

BQ24295 REG09 = 01 

Power comes from a 5V, 3A external POE Input (TPS23758) which I've measured to not glitch even a hair (as far as I can tell) (I've run load tests on this external DC Rail and know it's okay up to 3A)

I think it has to do with drawing over a certain amount of current (not exactly sure how much but lets say about 500ma-700ma)

When I draw less, there's no glitch on SYS.

This drop/glitch happens more often on some of my boards than others.

Is there a certain current limit the causes BQ24295 to drop SYS when no battery is present even though there is plenty of external voltage/current?

Thanks so much for any ideas!

Jeff