Pokémon Bank/Poké Transporter's First Mistake

As some people know, if you got the Pokémon Colosseum GameCube bonus disc you were able to receive  a Jirachi. And if you transfer that Jirachi from RS to DP and from DP to BW/B2W2, and then tried to transfer it from BW/B2W2 to XY with Poké Transporter, it was say it was hacked or how it really says it, "created", and would not let you transfer it. This was Pokémon Bank and Poké Transporter's first mistake.