RAM Connection: HSS Truss Ductility Warning

RAM Connection CE 13.0 issues a Material Ductility warning in the limits of applicability section when using ASTM A500 Grade C because the vaule is 0.81 and the maximum value is 0.80.  The notes in Table K4.2A state that "ASTM A500 Grade C is acceptable".  It would seem that this warning should not be given.  

What can be done to get rid of this warning?