as shown by our schematics, LTM8071 output cannot be shutdown by set “RUN” to 0V.
We tested the voltage of RUN pin by multimeter, it showed 0V indeed.
We changed another chip of LTM8071, it was the same.
It is configured to a inverting converter according to the schematic. Please make sure RUN pin is pulled to low referring to GND of the module which is actually 'VOUT-'.