Main menu problem

So weirdly enough when i was making the main menu i ran into a issue with it’s build
It fades to white something that i never actually added or was able to find what causing it so i resorting to the forums to fix it.

It looks like this when in the engine
www.youtube.com/watch?v=WVIvSrGERbA&feature=youtu.be
What it looks like in build…
www.youtube.com/watch?v=X5SNc-MsGik&feature=youtu.be

I mean come on i didnt even put a white material in there so i actually really confused as to what happened.

I had to remake the scene twice btw first one corrupted i rather not make a third…