Octane plugin in Unreal does not render transmission material.

I enabled all my render passes but it doesn't help.
I used a specular and universal material, volume and scattering medium.
Any help.

Interesting, could you share your orbx with me? It would me save time as I am not very familiar with the c4d plugin.
Im using Octane plugin and Orbx format to import. With c4d plugin no problem
I think it's related to the scene, because if I remove all geometry and create a default cube, the ...

Problems with convertation Octane material from orbx scene to Unreal 4.27
1. If the texture passes through Color correction node then it will not be imported into Unreal material
2. Texture emission node assign as normal, Roughness as Specular, Opscity as refraction, Normal as Opacity.
3. Most of ...

If the scene uses a polygon selection tag (cinema 4d) and I save the scene as orbx, then when it is imported into unreal, it crahed.