The Great Ping Pong Scam - S1-E11
Other mistake: In the episode 'The Great Ping Pong Scam,' Tori goes up to see Jade. Later on in the conversation, when Lane appears, Tori says something to Jade and you can tell that Tori is not looking at Jade.
Other mistake: In 1-7: 'Robarazzi', Robbie shows a video of Jade and Beck talking in a car. In the middle of the conversation, Jade states she had tuna fish for lunch, but in this episode, when Jade is listing things she hates, she lists "tuna fish".
Answer: The Director hated working with Melinda, but knew that her superstar popularity and status would get his movie a big buzz and higher ratings. And the movie was discontinued for a re-audition to fill-in Melinda's leading/major role.