Surface edges not rendered when transparent objects are visible

Rhino Rhino for Windows
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1

In rendered display mode, surface edges stop displaying when any transparent object is active. Hiding all transparent objects or turning off their layer or changing to a non-transparent material fixes it so that the edges display properly, but they disappear again as soon as any transparent objects are visible.

image
image1938×1478 132 KB

2

Update:

Either of:

  1. Object with transparent material
  2. Picture frame object

Causes both of:

  1. Surface edges not rendered
  2. Solid hatches (but not other hatches) drawn behind all surface geometry regardless of assigned draw order.
3

Bumping. This still occurs in SR10.