>>47951351Could be an error, but it could be a new "feature" like gender difference or maybe an alt, old world and new world pokemon, some pokemon are the same but have very slight differences, like extra yellow horn or a darker shade of red, just very tiny things.
Honestly I think it's to early to fully judge until you see more, it could be a error with texture mapping that it got extra ploch of yellow that landed in that spot in, but at the same time I doubt an error would fit on it like that as it looks to natural of a pace to put it, but I wouldn't put it past them.