User blog comment:KamariU/OMGGGGGGGGGGGGGGG!!!/@comment-5204941-20120917153111/@comment-12525944-20120919200259

Which brings us to conclusion that Rainbow again throws confusion. Nick english version of season 5 is, since Cinelume and 4kids drops series, the only official. However, in the Nickelodeon dub, Winx Club 3D: Magical Adventure is no longer considered as being part of the same continuity as the rest of the series. That's not only my opinion, check trivia here http://winx.wikia.com/wiki/Winx_Club_3D:_Magical_Adventure#Trivia