There are errors in the datasheet 'simplified schematic' on page 1 and figure 16 (figure 28 and 34 are ok):
VOC_SAMP must not be connected to VSTOR.
And in the forum there was a recommendation
"... to isolate any resistive loads connected at VSTOR using an external PFET with gate drive by /VB_SEC_ON."
This should be mentioned in the datasheet. A load during cold start is a serious problem.