Island of the Giant Pokemon - S1-E17
Revealing mistake: When Team Rocket is about to use the brakes in the cart, Jessie disappears from the cart, but her outline is still there. In the same shot, James overlaps her. Additionally, the cart is moving forward, but after Team Rocket breaks the brakes, it is moving backward. (00:16:09)
Island of the Giant Pokemon - S1-E17
Revealing mistake: When Jessie first saw pulling the cable, the phone is not fully coloured in, and the background can be seen through it. (00:13:08)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Koffing and Ekans refuse to attack, and when Ekans explains that Pokémon only do bad things because of their masters, the yellow stripe on its underbelly turns purple like the rest of its body. (00:06:28 - 00:07:10)
Island of the Giant Pokemon - S1-E17
Continuity mistake: When Jessie's image appears after Ekans says it only obeys its master, her blue eyes turn white. (00:06:46)
Haunter Versus Kadabra - S1-E24
Continuity mistake: When Ash says that Misty and Brock are dolls, the dolls of Misty and Brock are on the ground, but a shot later, they have disappeared. (00:06:42)
Abra and the Psychic Showdown - S1-E22
Continuity mistake: When the camera pans up to show the Sabrina doll as Ash and friends are running, Pikachu abruptly shifts right briefly before returning to his previous position. Also, the centre cloud is above two others on a set, but in the next shot, it is below them. (00:16:05)
Continuity mistake: When Ash and his friends escape the ship, Ash's gloves disappear. (00:12:44)
Abra and the Psychic Showdown - S1-E22
Revealing mistake: When Sabrina puts her right hand on the floor of a hallway, the lines that indicate the impact of her hand remain after it happens. Also, her aforementioned hand is on the floor, but in the next shot, it is not there. Additionally, the door to the right is blue, but in the next shot, it is brown. The shot after also has the dresser, its items, and the rug in the main room going from present to absent. (00:15:43)
Continuity mistake: When Team Rocket begins reciting their motto, Jessie's gloves disappear. (00:06:42)
Continuity mistake: When Ash and his friends recall their Pokémon during their battle with Team Rocket, Ash's left glove disappears. (00:07:58)
Island of the Giant Pokemon - S1-E17
Other mistake: When Ash wakes up on the beach, part of the sides of the hat overlaps the front. (00:01:53)
Continuity mistake: When Jessie tells Ekans to use Acid, the stripe on its tail disappears. (00:04:45)
Continuity mistake: When Ash and his friends paddle away from Gyarados, the tips on Meowth's feet disappear. (00:18:52)
Continuity mistake: When Meowth says that Jessie and James picked a bad place for their nap, the black edge of his ears turns cream. (00:04:04)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When Ash is impressed on seeing the inside of the cruise, his bag disappears. (00:05:57)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When Jessie insults James for getting tricked by the salesman, she appears in her regular clothes, instead of her disguise. (00:12:12)
Battle Aboard the St. Anne - S1-E15
Continuity mistake: When a passenger asks the captain if the ship is a little off-course, a crowd surrounds a hallway, but in the next shot, the hallway disappears. (00:18:39)
Mystery at the Lighthouse - S1-E13
Continuity mistake: During the motto, James' purple belt turns white in one shot, and shortly after, Meowth's cream forepaws turn orange. (00:11:38)
Mystery at the Lighthouse - S1-E13
Continuity mistake: After Krabby's Poké Ball disappears, the white stripe on Ash's bag turns orange. (00:05:05)
Mystery at the Lighthouse - S1-E13
Continuity mistake: When Misty says that the lighthouse will probably have extra beds, her suspenders disappear, while the purple strap on her bag turns red like them. (00:06:49)
Answer: Yes it ran away because Layla hurt its feelings.