RAM Concept - AS3600-2018 vs AS3600-2009

Hi,

I have been using RAM concept to model a banded slab and have a peculiar result (for AS3600-2018). RAM is calling up additional bottom steel perpendicular to the band for strength in the check it does before checking shear.

Starting 8.1 Flexure Design
Flexural/Axial Design Excluding Shear/Torsion Tension:
Preliminary Bending Design
As Top 0 mm² ()
As Top Developed 0 mm² ()
As Bot. 252.3 mm² (8.1)
As Bot. Developed 252.3 mm² (8.1)
As Shear Density 0 mm ()
As Shear Spacing infinite mm ()
As Shear 0 mm² ()

However, if I run the exact same model with no changes using AS3600-2009 there is no additional steel that is required.

What is going on here, why is the steel called up when it is excluding any of the tension due to shear? Let me know if you need any further information.

Thanks