Yuvan withdrawn from Karthi new movie Komban

Karthi pair with Lakshmi menon ne movie is "Komban" . This movie was directed by "Kutti Puli" director Muthaiah. After "Paruthi Veeran" Karthi act in village character subject. This movie story is jolly village comedy love story . The movie shooting were held in Karaikudi near areas. First This film music is composed by Yuvan Shankar Raja. But now Yevan withdraw from this movie , G.V. Prakash Kumar compose the music. G.V.Prakash kumar said that news in his social facebook page. Dont know the reason for Yuvan withdrawn from movie "Komban" . What is the reason ?