Looking at the tutorial, that Displacement value may be just high enough to trigger these bad effects. I'll have to try this out. And I shall have to see how the Granite node setting interact. (Aiko 3 has the Spandex morphs to give cloth edges at wrists, ankles, and feet. allowing the creation of a catsuit as part of the figure. There is also a new material-zone arrangement to allow shorter sleeves and pant-legs, but without the morphs the result looks as though it was painted on. Feeding a displacement into the material for the clothed body-surface gives that edge, but can trigger the lost polygon effect.)