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Beyond Good and Evil: Part 1 - S4-E8
Continuity mistake: Gambit and Beast have instantly appeared behind Wolverine after he asks how the Nasty Boys got inside the mansion. (00:17:55)
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Beyond Good and Evil: Part 1 - S4-E8
Continuity mistake: When Hairbag knocks Wolverine down, Rogue can be seen lying on the ground next to Storm. A couple of shots later she is shown lying next to Gambit. (00:12:40)
Beyond Good and Evil: Part 1 - S4-E8
Continuity mistake: The crowd of animated extras that are on the mansion's porch have suddenly disappeared when Jean and Cyclops get in their car. (00:11:35)
Beyond Good and Evil: Part 1 - S4-E8
Continuity mistake: The cake frosting on Cyclops and Jean's faces goes from being to just around their mouths to all over their cheeks. (00:10:50)
Beyond Good and Evil: Part 1 - S4-E8
Continuity mistake: A giant stone is covering the secret door to Apocalypse's Lazarus Chamber. After Cable presses the snake lever to open the door, the giant stone has disappeared. (00:03:35)
Answer: Chris Potter, the original Gambit voice actor, did indeed quit the role in the 4th season. His last episode was The Phalanx Covenant Part 1 so it seems reasonable that Fox would limit the use of the character even though it was recast. It doesn't appear that Potter left the role due to animosity, he stated in an interview that he wished to play Gambit in the first live action X-Men film.
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