I turned off Iscurves for these objects (and in general settings) but I’m still seeing them… Or are these different? Is there a way to adjust the density or turn them off? They’re part of a Monochrome layout I’ll be exporting.
A guess is you have a polysurface with lots surfaces, and you are seeing the edges of the those surfaces. But that is just a guess. Post a .3dm file and you will probably get a better answer.