DESIGN NOT PERFORMED WITH PRISMATIC PROPERTIES with GST parameter

Hello,

I am trying to design non standard size I beam with help of user defined table command "ISECTION".

I am using design code EN1993-1-1.

But i am getting following warning:

DESIGN NOT PERFORMED WITH PRISMATIC PROPERTIES
USER-TABLE MAY BE USED TO DESIGN PRISMATIC SECTIONS.

Now referring to one of the old post from Mr Modestas, he recommends to use GST parameter (0 in this case) section.

I have already included that parameter in design data still i amfacing the same warning.

When i changed the design code to IS800, then it dont show this kind of warnings.

Request you to provide solution as early as possible.

Regards,

Vishal