Take the top ends of the idle ground floor columns 130 cm up. Take the lower ends of the same empty mezzanine columns 130 cm up. In this way, the nodal points of the beams and columns are combined. It will be more accurate if you enter a beam on the ground floor and give a + level instead of entering beams on top of each other on the mezzanine floor and giving a minus level. You should also fix the problem of incorrect column placement on the top in the geometry control. Connect the columns to the beams in other directions as well, you are making a hollow floor slab. You have the right to run beams wherever you want. (eg mezzanine floor s28, 29, 19, 6, 10, 34) I don't understand column S10 at all? You have taken a 12cm gas concrete load on the inner and outer walls?? I hope they use aerated concrete on the interior walls and I don't think the exterior walls are 12 cm.