Can't paint RGB on one SubObject

[CWR63]

I masked off my main subobject to texture it with spotlight; loaded texture, turned off Zadd, turned on RGB, lined up the texture in spotlight - no result when I paint. Thinking it’s the brush, I switch to the standard brush and get a result…the surface deforms because the Zadd is turned on by default, but there is no RGB info on the subobject. So the problem isn’t spotlight. I clear the mask - nothing. I fill the object with the flat color material successfully, but it won’t show any RGB whether painted normally or through spotlight. I even tried moving it down the subobject list, to no effect. It will FillObject with RGB color, but that’s all.
I choose another subobject and spotlight a texture on it with no problems.

What have I forgotten? I went through all the youtube video tutorials but I can’t figure out how I might have locked this subobject - I’ve only been using Zbrush for a few weeks, using it to fix up a hard surface project made in 3DS Max.

Thanks,
CWR

[CWR63]

Well, I reconstructed my sub-D levels so I could do a UV Master unwrap that wouldn’t crash Zbrush, as 5 mil point objects are wont to do.

This was the base object:

This is what showed up after the unwrap of the clone:

I’m guessing this has something to do with not being able to paint RGB on this subobject?

[Cryrid]

Have you checked to make sure a texture map isn’t applied to the model (Tool: Texture Map)? This would visually override the polypaint (making you think you’re not able to RGB paint on it). Also, if the existing texture was using black for transparency then I can see UVMaster creating a similar result as the new UVs wouldn’t match the old texture.

[CWR63]

Thank you Cryrid, that was the problem! I would have never figured that one out on my own.

Now that I can polypaint, UV unwrap is of lesser importance…