Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When the fully regenerated Garokk emerges from the mountain, his loincloth is an orange-brown color. A couple of shots later, it is now grayish-brown. (00:17:14)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When the giant monolith of Garokk forms out of the mountain, the markings around its eyes are red. In subsequent shots, the markings are now the same gray color as the rest of the monolith. (00:13:18)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Storm is explaining her behavior to Rogue, the communication devices from her chest are missing, owing to her ripping them off a few scenes earlier. Moments later when Rogue is draping a blanket over Storm, the communication devices are suddenly back in place. (00:20:12)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Wolverine is calling out to Rogue and Storm, his claws are retracted into his arms. When the shot changes, his claws are extended. His hands also go from being cupped around his mouth to being instantly down at his sides. (00:19:15)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Beast is holding up Storm's arm and saying "Crisis contained," his white fingernails have been colored the same blue as his fur. (00:09:25)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Wolverine places his hand on Storm's head, her eyes are open. When the shot changes, her eyes are closed. When the shot changes again, her eyes are open again. (00:08:25)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Rogue is walking towards Beast after he has sedated Storm, there is a hut directly to her right. When the shot changes, the hut has disappeared. (00:07:41)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: The rubble that Storm is buried under magically removes itself from her. Rogue could not have been the one to unbury her because the rubble falls at the same moment Rogue arrives on screen, and Storm could not have done it herself because she was unconscious. (00:19:20)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: When Storm breaks off communication with Beast, the animation suggests that she is removing the communicators from her chest, but they remain in place. A couple of shots later, they are completely gone. They then reappear and disappear throughout the rest of the episode. Note: this mistake may only apply to the version of the episode that appears on the DVD. In the version of the episode that appears on Disney+, Storm does indeed rip the communicators off her chest. (00:16:20)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: The edges of the chasm that Jubilee hangs from go from being uneven to straight-lined. (00:13:40)
Savage Land, Strange Heart (2) - S3-E9
Continuity mistake: After Storm destroys the statue of Garokk, his ethereal form petrifies the surrounding area. When it changes to a wider shot, the land is back in its original state. (00:03:30)
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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