The Phoenix Saga (3): Cry of the Banshee - S3-E5
Revealing mistake: When Professor X is telling Juggernaut that he is in his mind, if you look closely you can see there is a disembodied mouth on the right side of Professor X's face that is synchronized with his dialogue. Apparently an animation error. Note: this error may only apply to the DVD version of the episode, as it does not occur on the version of the episode that appears on Disney+. (00:04:00)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Black Tom Cassidy attacks Xavier from behind, the window is adorned with pink drapes. Moments later after he knocks out Lilandra, the drapes have disappeared. (00:04:27)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Juggernaut throws Xavier out the open window, Xavier is shown going through roughly the middle area of the open space. When he is flying through the air from Banshee and Moira's perspective, he is falling from a higher position. (00:05:02)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Other mistake: When Xavier is telling Moira about how he and Lilandra were attacked, Moira dismisses his claim, reasoning that he came to her for help because he could no longer trust his own mind, and that no-one else had been in his room. She witnessed him flying out of a window, and he's a paraplegic. Unless she thinks he somehow catapulted himself out the window, she shouldn't have been so dismissive of his claim. Not to mention the damage to the room, including the bed being thrown against the TV. (00:05:21)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: The yellow paint for the "H" marking on the helicopter pad on the roof of the Muir Island Research Center becomes smaller when the shot changes. (00:09:20)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Black Tom Cassidy is first shown counting his money, he's seated at a table with no wall near his backside. Moments later when Erik the Red is telling Lilandra what name he goes by on Earth, there is suddenly a window behind Cassidy, within an arm's reach. (00:10:22 - 00:11:09)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Wolverine is first shown detecting scents in Xavier's room, the glove on Gambit's right hand is the same color as his flesh. (00:11:25)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Erik the Red is asking Lilandra why she won't answer him, there is a lamp in the background on the left. When the shot changes, a decorative stand has appeared next to the lamp. (00:12:00)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Xavier faints after trying to contact Lilandra, Gambit's cowl is the same color as his flesh. (00:12:11)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When the X-Men are flying towards Cassidy Keep, Gambit's neck is flesh-colored, when it should be black from his cowl. (00:13:02)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Revealing mistake: When Wolverine is trying to break out of the crystal entrapment, a yellow box appears on screen for a few frames that says "Cut out these frames." (00:15:58)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Continuity mistake: When Gladiator is landing at Cassidy Keep, Jubilee, Gambit, Wolverine and Banshee are spaced apart. When the shot changes, they are standing side by side. (00:16:43)
The Phoenix Saga (3): Cry of the Banshee - S3-E5
Audio problem: When Lilandra is saying "No, for the sake of the universe, no," her mouth movement is not in sync for some of the dialogue. (00:18:23)
The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: In the group shot when Phoenix says "of lives beyond measure," Moira McTaggert's hair is blonde and Wolverine is missing his gloves. (00:04:25)
The Phoenix Saga (4): The Starjammers - S3-E6
Other mistake: When Captain Britain is shown flying by the Elizabeth Tower, the two clocks visible are displaying different times. The clock on the left is showing roughly 12:10, while the clock on the right is showing 12:00. (00:04:50)
The Phoenix Saga (4): The Starjammers - S3-E6
Audio problem: When Phoenix says "We must movie quickly to safeguard the crystal," she is speaking in Lilandra's voice. (00:06:10)
The Phoenix Saga (4): The Starjammers - S3-E6
Character mistake: When Raza is firing the recalibrated stun ray at the X-Men, the control panel misspells "target" as "tareet." (00:08:10)
The Phoenix Saga (4): The Starjammers - S3-E6
Plot hole: Corsair takes out the X-Men by having Raza calibrating their stun weapon to humans. Since Corsair is also a human, the blast renders him unconscious along with the X-Men, and the Starjammers take him away. When Wolverine and Phoenix regain consciousness, they realize that Cyclops has been taken by the Starjammers as well. The problem is since Corsair was unconscious, he couldn't have possibly ordered the Starjammers to take Cyclops with them, and the Starjammers had no reason to take Cyclops of their own volition. Raza even acknowledges that Corsair is the one that takes Cyclops. (00:08:15 - 00:09:00)
The Phoenix Saga (4): The Starjammers - S3-E6
Continuity mistake: When Corsair first enters Cyclops' holding cell, the door says "Security Cell 3." When Corsair leaves the room, the door simply says "Security Cell." (00:09:00 - 00:13:15)
The Phoenix Saga (4): The Starjammers - S3-E6
Audio problem: When D'Ken is ordering Gladiator to identify himself, he is speaking in a voice that sounds more like Dr. Corbeau from a few episodes earlier than it does D'Ken. (00:09:20)
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.
BaconIsMyBFF