'Til Death Do Us Part: Part 1 - S2-E1
Continuity mistake: When Rogue takes the unconscious Gambit into the War Room, she sets him down on the center table and stands at the edge of it. When she is showing Storm that she absorbed his powers, she reaches over to grab a coffee mug. There were no coffee mugs on the table when Rogue set him down, and they would be out of reach if they were located on another table. (00:16:57)
'Til Death Do Us Part: Part 1 - S2-E1
Revealing mistake: When Morph has sabotaged Beast's Danger Room session, the same shot of Beast running away from the projectile apparatus is used twice. (00:18:08)
'Til Death Do Us Part: Part 1 - S2-E1
Revealing mistake: After Morph laughs when the police have shot Storm out of the sky, there is a split-second flash of the establishing shot of the Veteran's Building Jubilee went to a little earlier in the episode. Note, this mistake may only occur on Disney+. (00:20:31)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Morph parks the police car outside the gates of the X-Mansion, the front half of the car is in the immediate pathway of the gate. A couple of shots later, the entire car is parked along the curb. (00:02:50)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Beast and Rogue are standing outside the hospital, there is a beige car in front of them. When the shot changes, the car is gone. (00:05:12)
'Til Death Do Us Part: Part 2 - S2-E2
Revealing mistake: In the second shot of Rogue and Beast standing outside the hospital, you can see they are floating about a foot above the sidewalk. (00:05:16)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Rogue and Beast first enter Storm's hospital room, Rogue is standing at the head of Storm's bed. When Rogue berates Beast for not assisting her and Storm at the end of the previous episode, she is now standing at the foot of the bed. (00:05:45 - 00:06:06)
'Til Death Do Us Part: Part 2 - S2-E2
Character mistake: In the establishing shot of the movie theater where the Friends of Humanity meeting is taking place, the word "Humanity" on the marquee is incorrectly spelled as "Humanty." (00:06:32)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Graydon Creed is giving his speech, the tail of the bird on the backdrop behind him is several feet above his head. When the shot changes, the tail is about level with his shoulders. (00:06:35)
'Til Death Do Us Part: Part 2 - S2-E2
Other mistake: The show establishes that Jubilee is Chinese-American, but after she accidentally blasts Wolverine, the way she pronounces "Sorry" is the way the word is typically pronounced by Canadians (most of the show's voice cast, including the actress who voiced Jubilee, are Canadian). (00:11:00)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: After Morph steals the Blackbird, there is a shot of Wolverine standing by his lonesome at the end of the hangar and looking out. When the shot changes, Beast is suddenly shoulder to shoulder with him. (00:11:32)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Cyclops and Jean are first shown shackled to platforms inside Mr. Sinister's lair, there is about 6 feet between them. When the shot changes, they are only inches from each other, and Mr. Sinister has suddenly appeared on the platform. (00:11:42)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Jubilee is first shown in Storm's hospital room, there is a dresser and some other equipment against the wall behind her. In the final shot of the scene, the dresser and other equipment have disappeared, and it is just a wall with a clock on it behind her. (00:12:40)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Morph is remembering who Mr. Sinister is, the flashback shows Morph lying on the ground with his right side facing Mr. Sinister. However, the previous episode showed that Morph's left side was facing Mr. Sinister. Morph is also suddenly wearing a jacket in this flashback. (00:14:34)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Morph collapses after finally remembering how he came into Mr. Sinister's service, his boots which are normally yellow are colored blue. (00:15:00)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Wolverine is saying it's time for the big game, the pink stripes on Gambit's right leg are on the inside of the leg, when they should be on the outside. (00:17:30)
'Til Death Do Us Part: Part 2 - S2-E2
Other mistake: When Mr. Sinister and the Nasty Boys are fleeing from the X-Men, their plane takes off a split-second after they have all disappeared into the treeline. (00:19:10)
'Til Death Do Us Part: Part 2 - S2-E2
Continuity mistake: When Magneto and Professor X meet in Antarctica, the white stripes on Magneto's right glove are red in one shot. (00:20:10 - 00:20:45)
Continuity mistake: When the opening of the Astral Plane is first shown emerging from Mt. Kilimanjaro's Kibo summit, the summit is correctly depicted as being somewhat flat. Near the end when the opening of the Astral Plane is diminishing, the mountain summit is shown to have a pyramidal peak. (00:02:35 - 00:16:50)
Continuity mistake: The graphic of Africa that Beast and Jean are observing is horizontally stretched at one point. (00:02:50 - 00:03:50)
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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