So I noticed that when I got close to the terrain trees and the mesh loaded the bark was appearing almost white, I tried change the bark material specularity but it had no effect and began messing around with other settings. I checked ambient occlusion and then these sort of tile like seams appeared on the tree. However after unchecking the ambient occlusion box they have remained there. Now the specific tree I have been editing also seams to have no leaves. I seem to have absolutely screwed up the tree prefab. When I make changes to the settings none of them seem to have any effect. I tried hitting reset but it did nothing. Please help!
Foreground Trees are messed up.

So I found [this][1] which seems to deal with one part of my issue although I don't know how to locate render settings in Unity 5? [1]: http://answers.unity3d.com/questions/414291/unity-tree-creator-bug.html
– VuzokI am having the problem where my trees showing up as boxes when I try to paint them on. Has anyone else had this problem? I made them in the tree creator.
– KimmySimpkins