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I have got weird color artifacts that I don't know how to fix

ZBrush Usage Questions
#1

I just noticed some color artifacts on my model and I don’t know how to fix it. It is not polygon color since I can paint over it and it is still visible.

1577×1155 274 KB

It is right there on the throat in the middle of the picture. Seems like some polygons decided to be overly bright.

Any help is appreciated.
Thanks in advance

#2

Ok, I fixed it. Apparently these polygons had unassigned material for some reason. I can’t figure out why that is since I had assigned a material to the whole model. Anyway, filling the object with the desired material fixed this issue.