Hello
In order to plot the profile of the section in the STAAD GUI, the program needs to know the exact shape. The shape can be understood only if STAAD.Pro knows the coordinates of the corners of the cross section. Unfortunately, when one creates a PRISMATIC or a GENERAL section using Section Wizard and exporting that data to a STAAD user table file, the coordinates of the corners are not exported with the property values. Due to this, STAAD is unable to draw the precise shape.
As a workaround, if suitable for your section , you may use the "Create User Table" from the Tools Menu and use the General Section type .
Switch on the check box named Define Profile polygon and provide the coordinates of the corners. Once all corners are specified, click on Compute Section Properties and save it.