I want to mention, I’m not familiar with ZB texturing methods, on the long path of learning it.
Made this texture in PS and wanted to fix some seams.
Going polypaint-to-texture and back alot, in the end I got excited and wanted to paint hair, so converted to polypaint again and now I can’t get texture to pick latest changes.
“New From PolyPaint” button seems to just reset texture to the last saved state or something similar.
Thought it has something to do with mesh/texture resolution, but in this case big white spot at the bottom of the neck would reflect in some way and it does not.
What am I doing wrong?

Found a solution in this thread:
http://www.zbrushcentral.com/showthread.php?t=79123
Appears to be a bug. Polypaint data is not updated until you move subdivisions slider in Geometry.