I just checked the TNG Movie uniforms and all four of the buttons (red, yellow, blue and admiral) all seem to be switching fine.
Can you try them again and take a screenshot if it still doesn't work?
It seems to go to a black version of the uniform, or bright red when I first go to them, but won't change if I click to change color.
I have to switch genders to 'Female' each time I want to change color.
Above, I went to female, switched to yellow, went back to male, and clicked on red before taking the screen cap. It's only the colors that do this, Admiral works fine on male.
