Bumper discoloration on Designo Magno


I have noticed that there is this color mismatch on the bumper. Color is Designo Graphite Grey Magno.
I bought the car used, 5k miles, about a year ago but I didn't notice that the color mismatch was this bad at the time.
Could the original bumper have been swapped and this one had a bad paint job or could there be another cause? There was no record of any body work done when I bought the car, so I'm just guessing at this point.


