Club SpongeBob / My Pretty Seahorse - S3-E12
Continuity mistake: In "My Pretty Seahorse", Spongebob is watching Mystery from behind a rock, as she eats flowers. She eats a flower right next to an uneaten one. Later, she eats the previously uneaten flower. In the next shot, the flower has now regenerated and Mystery eats it again.
Barnacle Face/Pet Sitter Pat - S8-E21
Continuity mistake: In "Barnacle Face", Spongebob is holding a glue bottle at the top of a ladder. When he climbs down, the glue bottle is not in his hand or on the ladder.
Barnacle Face/Pet Sitter Pat - S8-E21
Continuity mistake: In "Barnacle Face", Pearl throws a load of bars of soap at Mr. Krabs as he exits the room, leaving them scattered on the floor. In a few shots, they have disappeared.
The Bully / Just One Bite - S2-E17
Audio problem: In "Just One Bite", Squidward is running, then tiptoeing by Spongebob's house. The sound of his running is fine, but the sound of tiptoeing is faster and not in sync with with movement.
Chum Bucket Supreme/Single Cell Anniversary - S6-E22
Continuity mistake: In "Single Cell Anniversary", Spongebob places a megaphone on the ground. In a few shots, the megaphone has disappeared by itself.
Chum Bucket Supreme/Single Cell Anniversary - S6-E22
Continuity mistake: In "Chum Bucket Supreme", Patrick is painting the slogan "Krabby Patties Are Fum" on the Krusty Krab with no hole in the back of his head. In a few shots, Patrick is standing in the same spot, and the hole in his head has reappeared.
Chum Bucket Supreme/Single Cell Anniversary - S6-E22
Continuity mistake: In "Chum Bucket Supreme", Mr. Krabs hears the sound of Plankton's cash register, and the wide shot shows him standing on the pavement around the Krusty Krab. In the next shot, he is now standing in sand.
Chum Bucket Supreme/Single Cell Anniversary - S6-E22
Continuity mistake: In "Chum Bucket Supreme", Mr. Krabs notices that there are only two customers in the Krusty Krab. When he goes up to the front window, the customers and their tables have vanished.
Chum Bucket Supreme/Single Cell Anniversary - S6-E22
Continuity mistake: In "Chum Bucket Supreme", Plankton rips up a piece of paper on top of Karen. In a few shots, the ripped paper disappears.
Culture Shock / F.U.N. - S1-E10
Continuity mistake: In "F.U.N.", Plankton uses a laser to get through the secured Krusty Krab. When he does this, we can see the outside. In the next shot, the hole is now gone.
Culture Shock / F.U.N. - S1-E10
Continuity mistake: In "Culture Shock", Mr. Krabs arrives in a wheelbarrow of money, with several bills landing on the floor. In a few shots, the money has disappeared.
Culture Shock / F.U.N. - S1-E10
Continuity mistake: In "Culture Shock", Squidward is waiting next to a slightly opened curtain. In the next shot, the curtain is completely closed.
Culture Shock / F.U.N. - S1-E10
Continuity mistake: In "Culture Shock", Squidward closes the curtains, leaving a pile of rope, and Spongebob comes down from the ceiling. In two shots, the pile is gone.
Culture Shock / F.U.N. - S1-E10
Continuity mistake: In "Culture Shock", Patrick is sitting at a table with Spongebob's parents and Mr. Krabs, who each have a plate and silverware. When the camera cuts closer to Patrick, his plate and silverware have disappeared. His plate and silverware reappear in another shot.
Culture Shock / F.U.N. - S1-E10
Audio problem: In "F.U.N.", Spongebob and Plankton both say "Eat 'em", but both of their mouth movements do not match the words.
Sandy's Rocket / Squeaky Boots - S1-E8
Continuity mistake: In "Squeaky Boots", a piece of Mr. Krabs's foot comes off in a hole in the floor boards. Several shots later, it disappears by itself.
Sandy's Rocket / Squeaky Boots - S1-E8
Continuity mistake: In "Squeaky Boots", Mr. Krabs is about to reach a curve in his boat, but in the next shot, he continues driving straight.
Ghost Host/Chimps Ahoy - S4-E10
Continuity mistake: In "Ghost Host", Spongebob rips off a bit of sponge and drops it on the ground. Two shots later, his head is back to normal and the sponge on the floor is gone.
Ghost Host/Chimps Ahoy - S4-E10
Continuity mistake: In "Ghost Host", the Flying Dutchman is falling down the side of a cliff. When he lands on the ground in the next shot, the cliff is gone.
Ghost Host/Chimps Ahoy - S4-E10
Continuity mistake: In "Chimps Ahoy", a robot is lying down on a log. The robot gets up and peels the banana one of the chimps was holding. In the next shot, the log has completely disappeared.
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 ★