Hi,
Probably some or all of the reported problems related to the Octane core are already fixed in the latest RC builds. I'm waiting for the RC4 Octane core build to release the new Lightwave plugin builds because the current RC3 core has a problem with the shaderballs that could crash the whole Layout. Once this new RC4 core will be available, a new LightWave plugin build will be released including some or near all the new Octane 4.00 RC features
Thanks,
-Juanjo