My scene has messed up trees, but new scene doesn't.

Hello, I don't know how it happened but the Trees created with TreeCreator, including the default one, have a space between some of the polygons in my scene, but this issue doesn't occur on new scenes. You can see images of what i mean in the Unity3D answers below:

http://answers.unity3d.com/questions/476571/messed-up-trees-in-only-my-scene-not-new-scene.html

Is this a bug of some kind, or is it due to some kind of setting my scene has? I've tried reimporting the assets and everything, with no success.

 

I figured it out. Looks like the default BigTree prefab doesn't work well with a Wind Zone. I fixed it by disabling the wind effect on the tree trunk section.