Section Stiffness Scale Factor

I am concerned that the Section Stiffness Scale Factor is not working correctly with construction staging in MIDAS 2018. The attached model of a simple fixed beam has a section stiffness scale factor activated in the second step for the end elements at the supports. The section stiffness scale factor has a value of Iyy = 0.001, and is equal to 1.00 for all other DOF. However, the moment diagram does not change in the step during which the scale factor is activated. In the third step of the model, hinges are activated at the ends of the beam, and the moment diagram changes to a simply-supported condition as it should. Shouldn't the moment diagram at the end of the second step be essentially the same as at the end of the third step? I have attached the model file.

Thank you,

For section stiffness scale factor, it is assumed that applied load is leading to reduction in stiffness and this is not redistributed.  However, if any new load is applied, then for that new load, this will behave as a section with reduced property.  Hence, for new load, this would act as simply supported.

However, when beam end release is provided, the forces due to the already applied load are also redistributed, making the overall behavior as simply supported.