The Battling Eevee Brothers - S1-E38
Continuity mistake: When Sparky asks, "Have you decided on Eevee's Evolution yet?" Misty's left thumb is on the front of the bench, but in the next shot, it is not. Also, there is a drink on the right support of the bench, but in the next shot, it is on its beams. (00:10:16)
Continuity mistake: When Ash is surprised after the hippie tells him and his friends to leave, one of Pikachu's cheek pouches disappears. (00:02:34)
Continuity mistake: In the shot after the title card, Ash's bag disappears. (00:02:42)
Continuity mistake: When Ash requests a baker, the basket further away from the screen has its left strap facing diagonally up, but in the next shot, it is facing vertically. (00:03:45)
Continuity mistake: When Ash tells the baker that he wants some bread, the left strap of his bag changes from green to white. (00:03:48)
Continuity mistake: When Ash first uses his Pokédex, the top two fingers on the left side are together, but in the next shot, the bottom two fingers on the side are together. (00:07:35)
Continuity mistake: When Ash first uses his Pokédex to learn facts on Snorlax, his right index finger is aligned with another one, but in the next shot, it is not. Also, his right ring finger is not aligned with another one, but in the next shot, it is. (00:07:40)
Showdown at Dark City - S1-E40
Revealing mistake: When Ash apologises to the young boys, one of the boys' left arm is disconnected from his body. (00:02:09)
Showdown at Dark City - S1-E40
Continuity mistake: When Yas first tells his Scyther to attack, the clips on his uniform disappear. (00:04:03)
Showdown at Dark City - S1-E40
Revealing mistake: When the Yas Gym underlings send out their Pokémon to attack Ash, the Poké Balls disappear into thin air. (00:09:51)
Showdown at Dark City - S1-E40
Continuity mistake: When Kaz sends out his Electabuzz during the final fight, the red "K" on his shirt turns blue like the rest of the shirt. (00:12:40)
The March of the Exeggutor Squad - S1-E41
Revealing mistake: When Misty tells Melvin to be careful, her left arm passes through the stage. (00:05:13)
The March of the Exeggutor Squad - S1-E41
Revealing mistake: When Misty tells Ash to stop looking at the Exeggcute, Ash's left hand is layered over the Exeggcute. (00:09:03)
The March of the Exeggutor Squad - S1-E41
Revealing mistake: When Melvin is throwing Poké Balls, they appear out of thin air before he throws them. (00:11:42)
The March of the Exeggutor Squad - S1-E41
Audio problem: When Jessie and James enter the box, they speak, but their mouths do not move. (00:12:30)
The March of the Exeggutor Squad - S1-E41
Continuity mistake: When Ash recalls Bulbasaur and Squirtle, his right glove disappears. (00:17:02)
The March of the Exeggutor Squad - S1-E41
Other mistake: The Pokemon Exeggcute is shown evolving in to an Exeggutor naturally. But the Pokemon Exeggcute can only evolve into an Exeggutor with the use of a leaf stone. In the Japanese version, there is a mention that something in these woods causes Exeggcute to evolve without using the Leaf Stone (when Exeggcute evolves, James even mentions that there is no stone). However, as this was skipped in the English version, it creates a plot hole.
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: During Team Rocket's motto, James' purple belt briefly turns white, like his trousers. (00:04:04)
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Ash says that Charmeleon still will not obey him, the green straps on his bag turn blue like his jacket. (00:11:06)
Attack of the Prehistoric Pokemon - S1-E44
Continuity mistake: When Ash and his friends are surprised, Charmeleon starts evolving. The black straps on Brock's bag turn green like his vest. (00:15:44)
Answer: Yes it ran away because Layla hurt its feelings.