Enter Those Three! Referee School Island! - S7-E52
Continuity mistake: At the end of the episode, the brown lining on Brock's sleeve turns orange. (00:20:47)
Enter Those Three! Referee School Island! - S7-E52
Continuity mistake: When Wartortle starts evolving, the collar on Jimmy's shirt changes from black to green. (00:17:44)
Enter Those Three! Referee School Island! - S7-E52
Continuity mistake: When Serena meets Jimmy at night, Jimmy's sleeves disappear. This also happens when she tells him to not give up. (00:14:12 - 00:16:44)
Enter Those Three! Referee School Island! - S7-E52
Continuity mistake: When Jimmy notices the Magikarp in his flashback, his bag disappears. In the same shot, the white fin on the Magikarp turns yellow like the rest of its body.
Hiwamaki City's Feather Carnival!! - S7-E44
Continuity mistake: After the Pokémon Trainer's Choice, Skitty's cream legs turn pink. (00:10:11)
Baneboo's Lost Object!? - S7-E39
Continuity mistake: When Ash tells Corphish to use Bubble Beam after Team Rocket's Pokémon during the first battle, his bag disappears. This also happens when Ash tells Torkoal to dodge Cacnea's Needle Arm. (00:07:52 - 00:19:02)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: When May asks what the sellers are going to run out of, the pattern on the lower half of Beautifly's wings changes from blue and red to yellow. (00:16:22)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: When Brock says that he and Grace make the perfect couple, part of Grace's right changes from skin-colour to yellow. (00:04:28)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: When Brock asks Grace if she wants to have lunch with him, Grace's yellow sleeve turns blue. (00:03:20)
What You Seed Is What You Get - S7-E1
Continuity mistake: When Natasha accuses Ash and his friends, the black stripe on Ash's hat turns red like the rest of the hat. (00:06:59)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the second part of May's flashback of what Drew said, Drew says, "So when a Trainer's confused, so is his Pokémon. But remember, that's the true essence of teamwork," but in the shot where this takes place, he says, "And that's the true essence of teamwork." (00:15:35)
Enter Those Three! Referee School Island! - S7-E52
Continuity mistake: When Ash, Max, May, and Jimmy ask, "Huh?" the visor on Ash's hat goes from red to black. (00:16:47)
Hiwamaki City's Feather Carnival!! - S7-E44
Continuity mistake: After James gets the false Chimecho, the stripe on it disappears. This also happens when he shows it to Jessie. (00:13:15)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the first part of May's flashback of what Drew said, he has his head turned downward, but in the shot where this takes place, his head is not turned. (00:15:28)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the second part of May's flashback of what Grace said, she says, "The one thing to remember above all else and without it you'll never win. Use the power of your Pokémon completely," but in the shot where this takes place, she says, "The one thing to remember above all else is that you'll never be able to win until you can use the power of your Pokémon completely." (00:15:21)
Pokémon Contest! Hajitsuge Convention! - S7-E10
Continuity mistake: In the first part of May's flashback of what Grace said, Grace says, "The most important thing is..." but in the shot where this takes place, she says, "But, the most important thing..." (00:15:18)
Fushigidane and Fushigidane! Regaining the Monster Balls!! - S7-E34
Continuity mistake: When Ash and friends first have a conversation with Professor Oak, Ash is not there, but in the next shot, he is. (00:05:08)
Answer: He is a good guy but just found himself in a bad situation when he worked for Lysander. He didn't want him to harm Ash and his Pokémon when he was trying to get the special bond between Ash and his Greninja to work. He does leave Lysander and go back to being a good person.