That faded look occurred on my first figure, too. It was on the left bicep and the colors was a pinkish hue and dull.
The weathering effect that HT had, would have made it a darker red because of the black mist and glossy.
If you're seeing the pinkish and dull effect, that's a paint defect. I had mine replaced and it was cool with CSC. I posted a picture of mine a week and a half ago.
here it is: The other three are what the weathering should look like, and the upper left bicep is the defect.
i just opened both of my mark V's and they both have the same problem on the left arm. hopefully i can get them replaced.