Storm Call Lightning bolt invisible

[blacksupernova]

Hi, I don't know why but the lightning bolt from the Storm call shout in my game is invisible. It still does damage, there are still spark impact here and there to indicate that it strikes, but the bolt it self is invisible.

I have tried to mess around with the CK but to no avail. The only conclusion I make is that it is possibly relates to the mesh file since if I switch the nif file to that of Lightning bolt spell, the lightning is not invisible (the lightning from the spell however is too small to substitute the real lightning)

So that's that. Can someone help me with this issue? Any help for a fix would be greatly appreciated.

Thanks!