david3der Well Rhino Raytraced mode has a very hacky integration done on my side as McNeel refused to integrate (don't ask me, ask them) so I forced Cycles compatibility with RN... However this actually is some issue with Cycles, not RN as RN objects are baked into the scene on the fly while Cycles is running so probably there's some kind of issue on Cycles side as it reads those as they would be regular blocks in the scene.
Plus, to compact your questions as your other thread had a question inside the topic(?) anyway... "hi, can you undo rhino nature edits, for example deleting a domain?" No RN does not integrate with the Rhino undo/redo system (there's much more to it than you could imagine) in simple words this way it's safer and much more stable.