I ran with mintpy.geocode.laloStep = auto #[-0.000555556,0.000555556 / None], auto for None, output resolution in degree. Although it covers the same area the X_STEP, Y_STEP used are different between ascending and descending.
gdalinfo hvGalapagosSenD128/mintpy/geo/geo_velocity.h5 | grep STEP
X_STEP=0.0006199295076789344
Y_STEP=-0.0005756299284440389
gdalinfo hvGalapagosSenA106/mintpy/geo/geo_velocity.h5 | grep STEP
X_STEP=0.0005961869802427441
Y_STEP=-0.00048084341369469965