cage, it's easy to get blocky-edged (aliased) figs in preview render, or in FFRender with pixel samples low and shading rate high.  naturally these would have been set correctly in pz3 file, but ask user to send shots of {preview, render, hardware} settings, prefs et al.  Happy thxgvng!

 p.s. takes years to learn poser, then they add stuff and we gotta start all over again