13A-398.sb17165245.eb19476558.56374.213876608796.ms is missing calibration intents 'BANDPASS'.  If intent BANDPASS is missing,  the flux density calibrator will be used as the bandpass calibrator instead.

hifv_importdata(ocorr_mode='co', vis=['13A-398.sb17165245.eb19476558.56374.213876608796'], createmms='automatic', asis='Receiver CalAtmosphere', overwrite=False)