Hi Daniel, thanks for sending this.
Unfortunately, I'm not able to reproduce it.
What's your OS? Windows, Mac? What's your exact version of Cinema 4D? You can find it in the bottom of about windows in the Help menu.
Did you load a specific scene? Did you do something special in Cinema 4D (like creating an object, material?)
Do you have any custom nodal materiel preset?
Thanks in advance,
Cheers.