The only problem is that my recent scene and materials that showed this error were all created from scratch in the same version of Vray 6. No legacy materials at all. No legacy objects.
I manually added a VRayPluginNodeTex node for use with VrayDisplacement.
So I don’t think the note in the yellow box applies, or is accurate in this case. And I have a seen this before in other scenes created entirely in VRay6.
I do have a shader with that node in an open material library, but it is the material I made with vray 6 hotfix 3 ( recent nightly)
I only get the warning when I open a scene that has the plug-in, and we are talking scenes made with a recent vray.
Is a scene helpful? Or will that not tell you the issue?
Perhaps it comes from merging an object with the node into a new scene.
Also note the scenes I have been having this issue with lately have the plug-in Tex connected to a VrayDisplacementMod in case that makes a difference… they are not connected to any other material.