Live Viewer is intended for lighting and materials preview/review. While it can show other things such as motion blur, the results will not necessarily reflect what is rendered by Octane for finals. This is because Live Viewer cheats for speed, while final renders go through the standard Cinema 4D evaluation pipeline, while Live Viewer does not. That is why we recommend doing a "make preview" for animation testing, for example.
In your case, I think the best course of action is to submit a support ticket at
[email protected] — do a
File > Save Project with Assets... archive the result and send it in with your ticket so we can take a look.
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