In Blender, I have added some more frames on the walls in my scene by duplicating some of the previously modelled frames, but I forgot to create new materials.
Now, in Octane when I attempt to change the image in a frame, I change it also in an other frame sharing the same material

Is Octane, I tried to rename the material, but it returns at the original material name...
Is it possible to make a material unique on an object in Octane ?
Thanks in advance !