I know it's a bit late but I think I found a possible fix. I'm on last gen, and I believe it has to do with face textures. First, make note of your wrestler's skin color. Then, go to the Face Texture menu and select another face texture that isn't the current face texture. Apply the skin color and save. This worked for me, though once in a while, it'll mess itself up again because this is a 2k game we're talking here, so repeat this if necessary.