Assuming the unwap looked good and the seams worked ok.
I suspect it is just a slight glith Blender has sometimes when painting in 3D.
I would use the 2D version to repaint the problem areas correctly.
Maybe faces inside out?
No faces are blue i checked no reds there
I was sure there was some point in the lectures that Grant mentioned this little glitch, and it can just be corrected in the 2d painting area.