I think the problem may be that the members are part of both a diaphragm and a truss. Getting the convenient output via the Floor Diaphragm option removes the necessary output for the truss.
Be careful however you model this as if you model the diaphragm directly as a plate , the plate will suck up much of the axial loads from the truss which may undersize your truss members. It would be worth a hand check to make sure the members have the correct internal loads.
Be careful however you model this as if you model the diaphragm directly as a plate , the plate will suck up much of the axial loads from the truss which may undersize your truss members. It would be worth a hand check to make sure the members have the correct internal loads.