It happens more.
If this is glassfiber reinforced plastic, its base colour is probably pink and the red paint comes off. This particular plastic is hard to paint because the surface is so tough and smooth. It cant hurt it, it just looks ugly.
I think only the early 2000-2005 ?? models had that problem, later they switched to plastics in the right colour, with most likely no paint (the plastic itself is tougher than paint)
At work we had problems with different shades of the painted parts and the plastic parts, but on the tractors all red parts are of the same glassfiber reinforced plastic, so the colours will allways match.