It looks like Sync 2 stays on a mostly white screen, at least according to these videos
https://www.youtube.com/watch?v=BIldUPcyypM&t=2m20s
https://www.youtube.com/watch?v=miJaVWT7xZ8
So I'd say the behavior you're seeing is perfectly normal.
https://www.youtube.com/watch?v=BIldUPcyypM&t=2m20s
https://www.youtube.com/watch?v=miJaVWT7xZ8
So I'd say the behavior you're seeing is perfectly normal.