Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: During the flashback of Wolverine's adamantium bonding procedure, his nipples are absent or present depending on the shot. (00:04:05)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: After Beast opens the door for Wolverine, the room on the other side goes from being lit up to completely dark. (00:05:20)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: The helmet Wolverine picks up changes from gray to gold and then back to gray when he drops it. (00:05:25)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: When Professor Oyama is stating how he intends to test his adamantium bonding process on Wolverine, if you look closely you can see that Wolverine already has adamantium claws protruding from his hands. (00:13:20)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: When Beast is jumping over the railing, the X emblem in the middle of his belt is yellow when it is normally red. (00:13:55)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: Sabretooth's glove is instantly back on after he scans his bare hand. (00:14:35)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: The metal tubes on the back of Wolverine's gloves disappear when he is bidding Silver Fox farewell. (00:19:15)
Weapon X, Lies, and Video Tape - S3-E19
Continuity mistake: Professor Oyama is shown to have a British accent in this episode. In the previous episodes he appeared in, he had an American accent.
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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