Vray decal seems to be affecting surfaces that are masked

[stevesideas]

I downloaded a decal from cosmos, copied the opacity map to the mask inside the decal and applied the material to the decal. I can see the square of the decal affecting the object it is being projected onto.

Edge of the vray decal gizmo seems to project a hard line on the surface (shown by arrow)

[stevesideas]

It's almost like the opacity isn't being taken into account properly and it's reflecting in the paint of the tail fin.

[stevesideas]

This is the reflection filter channel with the decal shrunk right down.

[stevesideas]

So. It turned out it was the normal map for the geometry. It wasn't setup correctly on the purchased model. All working as expected now