Rhino 8: Why are curves not occluded when in rendered views?

In this simple example, I’m trying to make an illustration of something being folded and trying to highlight the important edge for alignment-- where it starts and ends up.

One view

After rotating the view the curves are still visible through the surfaces which makes it very confusing to look at. How can I make the surfaces block the visibility of the curves? A work around is fine. I’ve tried so many things and nothing works.

frustrating2.3dm (263.5 KB)

Hi Mike -

You have played with the draw order of curves. Select all curves and run ClearDrawOrder.
-wim

Thanks Wim! That worked!

I’m not even sure how that got messed up.

Thanks,
Mike