Atlantis SquarePantis - S5-E12
Continuity mistake: When Patchy finds Encino to have shrank, he hits his peg leg against his foot. When Encino is being turned back into normal, he is wearing shoes on both feet.
Atlantis SquarePantis - S5-E12
Continuity mistake: When Plankton is placed in a jar, there is a sign that says "No Flash Photography" above him. In the next shot, this sign disappears.
A Flea in Her Dome / The Donut of Shame / The Krusty Plate - S5-E11
Continuity mistake: In "A Flea in Her Dome", Patrick asks Spongebob to get on Sandy's shoulders. Then, he climbs onto Spongebob's shoulders. In the next shot, they are suddenly next to Sandy's tree.
A Flea in Her Dome / The Donut of Shame / The Krusty Plate - S5-E11
Continuity mistake: In "A Flea in Her Dome", Patrick gets bitten by a flea and his chest is covered in bites. He takes out a pencil and connects some of the dots to make a horse. A few shots later, the horse and the bites disappear.
Patrick-Man!/Gary's New Toy - S9-E2
Continuity mistake: In "Patrick-Man", in the scene after Mrs. Puff gets arrested, the guy that SpongeBob serves the krabby patty to in the Krusty Krab is not wearing a T-shirt until the guy says "Lets hope Patrick Man doesn't confiscate this one," then he is seen wearing a white T-shirt. (00:08:00)
Continuity mistake: In "Sleepy Time", Spongebob is driving a car in his dream. When he starts to drive faster, he sticks his tongue out on his left cheek. When he makes a left turn in the next shot, it's sticking out on the right cheek.
Spongicus/Suction Cup Symphony - S6-E3
Continuity mistake: In "Spongicus" when Mr. Krabs and SpongeBob are outside looking at the "Chum Coliseum" and Mr. Krabs says "it's very suspicious" the tables inside the Krusty Krab are missing.
Jellyfishing / Plankton! - S1-E3
Continuity mistake: Plankton! When SpongeBob and Plankton are talking at night Plankton gives SpongeBob a golden spatula. When Plankton says he wants a Krabby Patty for his birthday SpongeBob drops it. Then when SpongeBob walks away, the spatula is nowhere to be seen.
Skill Crane/Good Neighbors - S4-E4
Continuity mistake: During "Good Neighbors" Squidward is sitting on his couch trying to enjoy his afternoon. SpongeBob and Patrick pop up behind him. In the next shot. Instead of Squidward sitting on his couch with Bob and Pat behind him, they are standing in the middle of the kitchen.
Help Wanted / Reef Blowers / Tea at the Treedome - S1-E2
Continuity mistake: In "Tea at the Treedome", in one shot, Spongebob's pants are inflated, and in the next shot they're not.
Buried in Time/Shellback Shenanigans - S8-E5
Continuity mistake: The authentic plate that SpongeBob accidentally drops in the time capsule and breaks repairs itself when it is seen inside the capsule after being buried.
Karen 2.0/InSPONGEiac - S8-E28
Continuity mistake: Squidward's house is missing in the shot that shows SpongeBob running from his house to Patrick's house.
Spongebob's Last Stand - S7-E22
Continuity mistake: As soon as a man stamps on a tambourine, it disappears 2 shots later.
Born to Be Wild/Best Frenemies - S4-E18
Continuity mistake: When we first see Plankton, the distance between him and the Kelpshake store keeps changing between shots. (00:02:20)
Pressure / The Smoking Peanut - S2-E12
Continuity mistake: In the episode "The Smoking Peanut" At the end when the man holds up the pearl out of Mr. Krabs pocket, despite being surrounded by a stadium, the close-up of his hand shows complete blue sky in the background.
Mermaid Man and Barnacle Boy IV / Doing Time - S3-E1
Continuity mistake: When SpongeBob zaps the pickles, he is standing next to the door. He instantly moves to the center of the room in a subsequent shot.
Chocolate With Nuts / Mermaid Man And Barnacle Boy V - S3-E11
Continuity mistake: When Barnacle Boy and E.V.I.L. are hiding behind the rock you can see Barnacle Boy's fingers. In the next shot he is wearing gloves.
Mermaid Man and Barnacle Boy / Pickles - S1-E6
Continuity mistake: In the episode "Pickles", there is a large fish named Bubble Bass. Although his name is Bubble Bass, the captions say his name is Bubble Bath. It is clear that Spongebob is saying "Bass" not "Bath", and his name is given as Bubble Bass in SpongeBob's Diner Dash.
Krab Borg / Rock-a-Bye Bivalve - S3-E8
Continuity mistake: In "Rock-a-Bye Bivalve" when Spongebob and Patrick hear the bivalve chirping, the coral that vibrates is bright green and is standing up straight. However, when they find the bivalve and take it out from behind the coral, the coral is dark green and is bent over.
The Great Snail Race / Mid-Life Crustacean - S3-E15
Continuity mistake: When Squidward looks through a window of SpongeBob's house, Patrick looks through a higher window. An outside shot shows that Patrick is standing in Squidward's shoulders, however, an inside shot shows that Patrick isn't in Squidward's shoulders.
Chosen answer: You need to provide a little bit more information to be able to answer a question like this. In what region is it not being shown? I see it being replayed here in Australia fairly frequently. As for a general reason, there does not appear to be any for why it specifically might have been taken off the air in any country or region. Like any show certain episodes can sometimes not be replayed for long periods for unknown reasons.
Lummie ★