It didn't ask me if I wanted smart props. Perhaps because I was saving multiple props? Perhaps because the covers were parented to the eyes, which were parented (each) to the head, and both eyes were set to "point at" the fifth prop? I dunno.

I'll try saving just one eye.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)