Oh and I'm using the XB3 version for now and this works by the way!
Maybe I just use this

Better to post in related topic for next time

Please read
https://render.otoy.com/forum/viewtopic.php?f=85&t=73505&start=80#p376853

Thanks for the quick response! I will keep this in mind for the future. But I don't see how it can be fixed from your link? It's saying something about a missing ...

Hey Forum,

I just re-setup my computer and Windows and reinstalled everything.

I wanted to use Octane 2019.1.5-R2 on my Cinema 4D R21.115 version. It seems like everything is working with Octane but when I try to create a composite material (I love them!) I get following error.

Error reading ...