Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Meowth says that Team Rocket is not joking, the gloves on Jessie and James' disguises disappear. This also happens after Ash says that he does not need a Pokétch. (00:03:32 - 00:04:19)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: After Ash says that he does not need a Pokétch, part of the scarf on Dawn's neck disappears. This also happens when Dawn says that her combinations are ready. (00:04:19 - 00:06:47)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Landis' father says that Brock and Croagunk are very close, Dawn's socks disappear. (00:08:12)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When the camera pans over to Dawn, when Landis' father measures her and Piplup's friendship, Dawn's white undershirt turns purple. (00:08:37)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Dawn says that Landis speaks wisely for being so little, her bracelet disappears. This also happens when she tells Piplup to use Peck. (00:09:41 - 00:17:52)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Ice Beam is about to hit Team Rocket, the "R" on James' uniform disappears. (00:16:05)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Team Rocket and their Pokémon attack, the purple spot on Seviper's face swaps from the left side to the right. (00:18:37)
Can't Get the Pokétch!? - S10-E10
Continuity mistake: When Croagunk drags Brock away, Pikachu's tail turns completely brown. (00:19:26)
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.