I am experiencing the same here. All materials comes through ok on everything but the Octane Scatters (I have 6 of these in my scene). Very weird.

This one is from C4D → https://www.dropbox.com/s/4kpl4vq2borj0mg/C4D%20Example.png?dl=0

And this one is from ORBX, rendered on RNDR → https://www ...