WE HAVE TRIED WITH THE FOLLOWING AVAILABLE COLD FORMED SECTIONS:
Even after our several trials, we couldn’t able to find any Best Possible Passing Profiles from the above complete collection of the STAAD Profile.
Did you check any one member with your hand calculations? With the loads and moments the members are hhaving and considering the span, is it passing in your manual calculation?
A validation for IS801 can be found in below location in help file. You may check that.
Thanks & regards,
Global Technical Support