The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: When D'Ken is berating Erik the Red for being defeated by the X-Men, he is sitting on a throne. He then stands up and calls Erik the Red a fool, and when the shot changes, the throne disappears. (00:09:47)
The Phoenix Saga (4): The Starjammers - S3-E6
Other mistake: When Gambit is tossing playing cards in Lilandra's helmet, he is shown tossing four cards. All four cards are the exact same card (the ace of spades). (00:13:30)
The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: When Cyclops and Corsair are boarding D'Ken's ship via the moving sidewalk, the speed at which the moving sidewalk is propelling them forward varies depending on the shot. (00:15:03 - 00:15:29)
The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: When Gladiator is telling D'Ken who Corsair's prisoner is, the section of the wall directly behind the tip of the throne is green. When the shot changes, it is now the same bluish-gray color as the rest. (00:15:43)
The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: When D'Ken is running from the Phoenix, the M'Krann crystal has been colored roughly the same shade of gray as the pedestal it was placed on. (00:16:46)
The Phoenix Saga (4): The Starjammers - S3-E6
Other mistake: When D'Ken is saying "Destroy them all," he is speaking with a German accent. (00:17:09)
The Phoenix Saga (4): The Starjammers - S3-E6
Plot hole: Rogue is able to punch Gladiator and knock him off his feet, yet in the previous episode when the Juggernaut punched Gladiator he didn't even budge. The Juggernaut is a lot stronger than Rogue, so either Juggernaut's punch should have affected Gladiator or Rogue's punch should not have. (00:17:55)
The Phoenix Saga (4): The Starjammers - S3-E6
Other mistake: When the X-Men and Corsair encounter D'Ken in the hallway, D'Ken, Gladiator and Lilandra remain in the background while the X-Men and Corsair are wiped from the screen. It's as if this was meant to be a zoom in on D'Ken, Gladiator and Lilandra, but their size relative to the camera remained the same and the X-Men and Corsair are simply removed from view. (00:19:35)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Cyclops says "What can we do?", Wolverine's bare arms are the same yellow color as his outfit. (00:03:40)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Ch'od asks Corsair what is happening, his normally green lips are colored white. (00:04:10)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Storm is telecommunicating with Xavier, she is standing in front of a gray wall. When the shot changes, the wall is now green. (00:06:24)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Jubilee rushes to Xavier to tell him about the black hole sun, Banshee's cape is suddenly missing. (00:06:32)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Gladiator is saying "All is lost, Empress," the front of Gambit's neck is flesh-colored, when it should be black like the rest of his cowl. (00:07:29)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: After the Starjammer has crashed onto the surface of the world inside the M'Kraan Crystal, Cyclops is missing his gloves. (00:07:50)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Xavier is first shown watching the clips of the destruction happening across the planet, he is wearing a jacket and gloves. When he is shown again around 30 seconds later, he is now wearing a suit and tie. (00:11:20 - 00:11:54)
The Phoenix Saga (5): Child of Light - S3-E7
Audio problem: Storm's mouth is completely closed when she says "The immediate threat to New York City has been averted." (00:12:10)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When the action returns to the X-Men battling D'Ken, Gladiator's neck is the same blue color as his hair, when it should be grayish-purple like his face. (00:12:35)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When Phoenix is teleporting everyone out of the M'Krann Crystal, Gambit's gloves are fingerless, when it has been previously shown that the middle and ring fingers are gloved. (00:14:53)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: After Jean says goodbye to Cyclops, Wolverine's bare arms are the same yellow color as his outfit. (00:16:39)
The Phoenix Saga (5): Child of Light - S3-E7
Continuity mistake: When the image of the X-Men are shown on a tree, Gambit's pants are the same blue color as his boots, when they should be black. (00:17:02)
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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