Vray2Sided Mtl doesn't work with Multi/sub-Object

[CubeCreative]

Hi!
I found a ancient shader created with an old version of vray (1.50) but the shader doesn't work properly. The character have a vray2sided Mtl, plugged in a multi sub-object for the ID, but the back material appears completely black.
If i apply the shader out of the multi sub-object, in a single vray2sided mtl, it's works.
But i really need to keep the organisation with the multi sub, do you have a solution ?
Thanks for your attention.

[tashko.zashev]

Hi,

Which V-Ray version you are using now? I did a quick test with 3.20.03 and everything seem to work fine.

Would it be possible to you attach your file?

[CubeCreative]

Ok, I get it, it's because we use also a shell material with a shader viewport and a shader renderable. I test without this shell material and it's works. It is strange because in the older version, it worked.

[Zdravko.Keremidchiev]

It seems to work fine here. Could you send us an example scene to support@chaosgroup.com or attached it here. Also which V-Ray version is that?

[CubeCreative]

The version of vray is Vray 3.20.01

[tashko.zashev]

The version of vray is Vray 3.20.01

Thanks,
It must be something different, since I still can't replicate the result from your screenshot using build 3.20.01.
Would it be possible to send us part of the scene to support@chaosgroup.com ?
You can also run a test with our latest official build 3.20.03.