The four equally loaded plates show different negative moments at the point of support, which raises the question of whether this is an error. In fact, the different smoothing of the results is due to the set interpolation on a slab-by-slab basis, which does not account for adjacent slabs. This phenomenon shows how the smoothing settings can affect the interpretation of the structural outputs and thus engineering conclusions. Analysis of internal forces and stresses with respect to smoothing is crucial for accurate engineering design.