When I put a number of SpeedTrees in a scene, something happens to the shader/color of the entire scene. It happened when I put maybe 100 or more in a frame rate test scene. And also a scene I was setting up as a library which had 50 or so. Each time I hit play I get different results. Eventually the contrast in the editor spikes and the editor view is messed up also. Switching color space, render path nor toggling HDR fix it. If I've added a lot of trees and it hasn't happened yet, adding the effects to the scene and applying FSAA to the camera will cause it. But it happens without doing that too. The scene is the default Unity5 RC3 scene with a plane, simple camera control and the SpeedTrees. ??