Microsoft has released a new update to all Xbox One Preview members beginning at 2PM on 10/26. This update contains fixes for the home screen stability issue.
OS version released: xb_rel_1411.141023-2232
Available: 2:00PM PDT 10/26 (10PM GMT 10/26)
- A fix for an issue some users reported where returning to Home from a game was unresponsive.
- Some Achievement notifications may not appear while you are playing a game. The team is aware of the issue and working on a fix.
- If you send a Party invite to 2+ friends signed in on another console, only one friend on that console will be able to accept the invite; the others will be kicked out once anyone else accepts. The team is aware and working on a fix.
Download it by navigating to Settings > System and selecting System Update from your Xbox One.
Source: Xbox Forums