JUST to be clear : this answer is for Mesh having UV, not about mesh face colors
I made some changes, so now I will output meshes that you could join.
if mesh is too far from mesh with UV I will put UV with a default value. Let say (0,0). So if you color the corner of the texture at (0, 0) all objects too far will have a same color
1.9.9 posted
Nautilus_Test LD.gh (4.0 MB)