Preview Program members will have issues with regard to the new update. NXOE was supposed to add backwards compatibility for Xbox 360 games and a new user interface to help streamline home screen feautures for the Xbox One.
Also included is a new “Community” to help make social Xbox users more comfortable with added user interactions.
Unfortunately their are reports that a bug has marred those who downloaded the update. Users are reporting that the update has reset all their console settings to default and reverted the dashboard to it’s original released state.
Take caution if prompted with a 2 gb update for NXOE.