Objects are turning white when loaded

Hi guys,

This question has been posted a few times in the "Answers" area, sadly with no answer.
http://answers.unity3d.com/questions/919882/objects-turning-white.html
http://answers.unity3d.com/questions/1027731/static-objects-and-and-terrain-detail-turn-white-u.html

I'm now experiencing the same problem. It's affecting everything and making it impossible to test anything, especially since im working on graphic pipeline type stuff.

Specifically for me - this issue is happening when I additively load scenes into my main scene.
EDIT: A little more information. This problem seems to be happening when the two scenes are lightmapped. I am continuing to try to find a specific series of events that causes this, but in the meantime any explanation would be helpful.

Does anyone know what is happening here?