JJRASC,
Please don’t waste people’s time with useless, wishywashy pseudo-answers. (That’s not the kind of service we were trained to provide when I worked at Apple.)
Yes, the behavior described only occurs when “Increase contrast” is on, because that’s the only time text color is used for the lyrics. (The “Differentiate without color” setting is irrelevant.)
But the actual question is why the color *changes* from red to blue after around 30 seconds. You didn’t answer this question. The change in color suggests that the color in use has significance (like pitch, person, etc), but I have yet to find a song where it doesn’t start in red and then switch to blue at about the same time, so it doesn’t appear to be contextual.
Kindly provide an *informed* explanation if you can find out, and file a bug report for us if you can’t.
Regards,
A.