I am analysing a plate steel truss where I have assumed that the diagonal members are tension only. When I go into Postprocessing and choose to display Fx, it shows small triangles at the ends of each of the tension only members instead of constant tension throughout the member. I have attached two views below of the same model. One was printed in Feb 2017 from Staad.Pro V8i SELECTseries5 and shows a constant axial force within each of the diagonal members. And one as I currently view it using Staad.Pro V8i SELECTseries 6 20.07.11.33 with a small triangular representation of the axial force at each end of the diagonal members. I believe that all of the forces are the same when I click on each member, it's just not displaying correctly. Also when I delete the tension only spec, the axial force displays correctly (however I don't want any compression in any members). Is this some kind of bug with displaying axial force in tension only members?
communities.bentley.com/.../SELECTseries-6.pdfcommunities.bentley.com/.../SELECTseries-5.pdf