Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Revealing mistake: When Mary Jane and the other servants of Baron Mordo are flying through the city, they literally disappear into thin air. Probably a problem with rendering the 2D animation within the 3D animation. (00:01:00)
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Revealing mistake: The same shot of debris falling from the ceiling in Baron Mordo's lair is used twice. (00:14:25 - 00:15:45)
Sins of the Fathers Chapter 7: The Man Without Fear - S3-E7
Revealing mistake: During the fight with Kingpin recycled footage is used from Season 1 Episode 7 Doctor Octopus: Armed and Dangerous. It's obvious when you see the background looking like the warehouse along with Doc Ock's machine behind Spider-Man.
Sins of the Fathers Chapter 13: Goblin Wars - S3-E13
Revealing mistake: Several shots of the Green Goblin are recycled from the earlier episode "Enter the Green Goblin," with some of them being used multiple times in this episode.
Chosen answer: Felicia and Peter's friendship in this series was depicted as being on-again-off-again. At this point in the series they may have been on good terms. Plus Felicia is a wealthy socialite and Peter and Mary Jane's wedding was a big event due to Wilson Fisk paying for all of it.
Phaneron ★