Hi Ammer,
select these options on following screen shots I added below and after that reanalyse your system.
(Conformance torsion check should be enabled for per beam)
Hi ammer,
if you need to adjust torsion's moment of inertia as %10 of torsion's moment of inertia or as any value, you should define your torsion's moment of inertia in beam settings for per beam.
But in that case, you wont select this option in beam parameters