I have a part where the first feature is a thin extrusion with the 'thin feature' setting set to .0747 (14 ga).  The second feature is an extrusion where I check 'link to thickness' and extrude in the thickness direction of the first feature.  The problem is that this new extrusion does not match the first feature's thickness despite me having checked 'link to thickness'.  Whats going on?

Thanks!