Replacing Sonic's Spring

[SonicBrawler]

For a hack I am doing, I replaced Sonic's Spring with the Sword form MK that is over the beam sword. I replaced the model and textures. But in game when the spring is supposed to dissapear, the game freezes. Can anyone help me?

[Anivernage]

what´s the filesize??
maybe there´s the problem

[SonicBrawler]

its .02 mb higher than its supposed to, (the fitmotion which contains the spring)