Starting from 2019.3.0b7, Unity no longer supports *.c4d files directly. Unfortunately, this flow – while it works in the ideal case – breaks down in a whole slew of real-world cases and was never that stable or predictable. c4d files is open a background instance of Cinema 4D, use it to convert your files to. Our integration with Cinema 4D has always been a little shaky. We have been working with Maxon to improve integration and want to explain how the change will affect your workflow. I want to share some good news for anyone who uses Cinema 4D and Unity.
