PM8804 VC high voltage set incorrect voltage level

[TLy.3]

I’ve build 5 boards using PM8804 and only one board seems to regulate the VC (Output of the internal high voltage start up regulator) according to the datasheet where the high voltage regulated drop below 6V when it detect auxiliary power detected higher than 8.3V. Please see the attached documents for the scope capture at VC. Both captures are tested at NO LOAD.