I exported my scene from Maya, I did the material setup, but then I realize that I had to modify the UVs of one object in the scene. So I went back to Maya, changed the UVs, re-exported in Octane using the same project as before, and now when it loads I get this error:
Automation Error
Node "myscenename.obj" is no mesh node.
And if I click ok Octane just reload the last saved scene, ignoring my last changes in Maya.

Any suggestion?
