The Lotus and the Steel - S4-E13
Continuity mistake: The village elder Yoshida-san suddenly has sideburns and a goatee when Soichi is mocking Wolverine. He is clean-shaven for all other parts of the episode. (00:07:25)
The Lotus and the Steel - S4-E13
Continuity mistake: When the biker gang is raiding the village towards the end of the episode, the leader of the gang alternates between having two spikes on each shoulder of his jacket, having them only on the left shoulder, or having none at all. (00:15:55)
The Lotus and the Steel - S4-E13
Continuity mistake: The amount of fish that fall out the net is more than could have fit into it. (00:16:25)
The Lotus and the Steel - S4-E13
Continuity mistake: When the biker discovers the children hiding in the tree, his motorcycle is parked right next to the tree with the left side of his motorcycle facing the pit. When he gets back on the motorcycle, it is suddenly several feet away from the tree and the front wheel is facing the pit. (00:16:30)
The Lotus and the Steel - S4-E13
Continuity mistake: Wolverine tears off the red sun portion of the Silver Samurai's costume. Moments later it has reappeared. (00:19:30)
The Lotus and the Steel - S4-E13
Continuity mistake: Shoulder pads appear on Jubilee's coat at the end of the episode. (00:19:45)
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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