The Phoenix Saga (1): Sacrifice - S3-E3
Continuity mistake: When Xavier is watching the shuttle launch, he has some sort of wheel on the right side of his hoverchair. Moments later when he regroups with Storm and Jubilee, the wheel is now missing. (00:09:17 - 00:10:07)
The Phoenix Saga (1): Sacrifice - S3-E3
Revealing mistake: When Cyclops is saying "Can this thing still fly," the purple coloring of the buttons behind him on the left shift up, while their black outline remains in place. (00:17:59)
Continuity mistake: When Beast begins leaving the art museum, the painting behind him is a Picasso. When the shot changes, it is a different painting. (00:05:49)
Continuity mistake: Gambit's black cowl is suddenly blue when Jean Grey is explaining that the alien spacecraft is a prison ship. (00:15:25)
Continuity mistake: When Jean tries to probe the Spirit Drinker's mind, she is standing several feet from the wall on her left. When Cyclops checks to see if she's all right, she is suddenly much closer to the wall. (00:12:07)
Continuity mistake: When Beast and Xavier first enter the alien craft, Beast's black eyebrows are incorrectly colored blue for a couple of shots. (00:13:58)
Continuity mistake: When Jubilee is saying "But the others," she is standing directly in front of Gambit. When the shot changes, she is no longer in front of Gambit. When the shot changes again, she is suddenly behind Gambit. (00:03:57)
Continuity mistake: When Gambit is saying "How are we gonna beat this thing when we can't even get close to it?", Jean Grey is on the viewer's left of the group and Cyclops is on her left. When the shot changes, Jean and Cyclops have swapped places. (00:16:31)
Continuity mistake: When they first run away from the Spirit Drinker, Wolverine is kneeling down and cradling the unconscious Jubilee, with Gambit behind Wolverine, and Lady Deathstrike on Wolverine's left. When the shot changes, you can tell by the brown boots that Lady Deathstrike is now standing behind Wolverine instead of Gambit. (00:04:50)
Continuity mistake: When Gambit is saying "Now what do we do?" after throwing a kinetically charged card at the Spirit Drinker, the glove on his left hand is suddenly missing. (00:07:54)
Factual error: At the end of the episode when Carol Danvers is shown comatose, there is an EEG machine next to her bed. This machine monitors brain activity and uses electrodes on the patient's head in doing so. She has no electrodes placed on her head, and the machine isn't detecting activity in her brain. (00:20:37)
Revealing mistake: When Beast is entering Carly's room to see if her procedure was a success, he passes through the door frame. (00:11:08)
Continuity mistake: The scratch marks Lady Deathstrike makes in the alien ship don't appear until she mentions them. (00:04:00 - 00:05:15)
Continuity mistake: When Gambit is warning Wolverine that Leech's message could be a trap, the backboard of the basketball hoop is visible over his left shoulder. When the shot changes to Jubilee offering to help Wolverine, the backboard is visibly larger. (00:06:55)
Continuity mistake: When Gambit presses the button to receive Leech's call, the antenna is on the left side of the phone. When the shot changes, the antenna is now on the right side. (00:05:42)
Continuity mistake: When Gambit scoffs at Jubilee's notion that the X-Men are a family, his irises which are normally red are now white. (00:07:25)
Continuity mistake: When Gambit and Jubilee are chasing after Wolverine, Gambit's gloves, pants and headgear alternate between being blue, black or a combination thereof depending on the shot. (00:07:55)
Continuity mistake: When Wolverine brings his jeep to a screeching halt, the windshield either changes color or appears out of thin air. (00:07:34)
Continuity mistake: When Wolverine regains consciousness, he runs away and turns around, and there is a tunnel system directly behind him, and the alien craft on his right, almost within arm's reach. A few shots later, the alien craft has disappeared. When the shot changes again, the alien craft has reappeared. (00:17:45)
Continuity mistake: When Leech picks up the gun to try to defend himself from the Reavers, he is in an underground area with brick walls. When Lady Deathstrike grabs him and asks why she should spare him, they are now standing in a tunnel with walls similar to a cavern. (00:02:50)
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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