naruto mistake

i have started to re-read naruto as i watched the anime till about the battle with Sasuke Uchiha in Orochimaru digs and from their read the manga so i missed a lot and i noticed that one of the corpses being controlled by kabuto has a Byakugan and a curse tattoo but when negi fights naruto he says that only death ereazes the tattoo and it takes the Byakugan with it and as this is an animated corpse it should have neither tatoto or Byakugan

i was horrified to find this