Yes, same airplane. I am quite familiar with this procedure of adding VDGS and establishing the correct stop position, in the past I did it hundreds of times in P3D and everything was saved correctly.
Anyway I did some more tests, I am not 100% sure but it looks like the position gets saved only if the parking position exactly matches the STOP position.This did not happen in P3D, I just needed that the STOP position was where I wanted it to be and it was saved.