The render now get a strange effect. The more light makes a blackout around that point.
You can see in imagebin (I don'w know how I attach the image in message) https://imagebin.ca/v/3wKeVTn1MBbY
https://imagebin.ca/v/3wKeVTn1MBbY
But I can export from Blender to OTOY.orbx format and render in the new OCTANERENDER 4.00 XB1
RENDER FANTASTIC HERE, not into blender via octaneblender plugin.
Thanks for the render

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Windows 10 Pro 64bit version 1709
GTX 1080 (8G)
i7-4790 3.60GHz 32 GB
Nvidia Controller 388.13 (02/01/2018)