Deliberate mistake: When the news program is discussing Gyrich's assassination attempt on Xavier from the series finale of the original animated series, he's shown to have his classic look of auburn hair and sunglasses. However, when this scene occurred, Gyrich had black hair and was not wearing sunglasses. This was done deliberately to match the character design of the original series prior to the final 6 episodes, when Saban took over and redesigned much of the show's look.
Deliberate mistake: Throughout the episode, all the police station clocks are still and show the same time (3:33) in different scenes. (00:18:55)
Episode #1.3 - S1-E3
Deliberate mistake: During the car chase scene in Munich, the German car the Jackal drives has absolutely no German licence plates. A Munich licence plate would look like 'M - XY 123' or so. (00:43:14)