Section Wizard Assigning a Near Zero Modulus of Elasticity for Plates. Causing Erroneous Section Properties for Built-up Sections

Hello, I have recently used section wizard to create a built-up section. I have found that for plates Section Wizard has assigned a Modulus of Elasticity of 2.08871e-315 (essentially zero), while for the w-section it is 205 (see first snip below). As a result, section wizard only returns values for the original w-section and ignores properties of the plate. I have found if I manually change the plate Modulus of Elasticity to 205 (match the w-section), this resolves the issue and returns combined section properties for the built-up member (see second snip below). 

I have compared this to a section I created a couple months ago and found this was not occurring previously. 

I have 2 questions:

1) Is there a way to reset or change the default plate Modulus of Elasticity?

2) How does section wizard calculate section properties? I would not expect geometric section properties to be changed by material properties?