I can not post a scene because I am evaluating the demo, which does not allow saving.
Basically I am using the feather preset when you add the ornatrix hair object. that's it.
The online guide shows 2 UV tags that are created when you add 2 channels. 1 for the overall coloring and one for the feather alpha texture:
https://ephere.com/plugins/maxon/c4d/ornatrix/docs/2/Rendering_with_Redshift.html
These tags do not seem to be created when I follow your online guide.