Earlier Saturday night, Xbox Live suffered serious connection issues. Microsoft managed to get some of the issues repaired.
According to "If you’re an Xbox Silver member having problems using existing or newly-created saves in Minecraft, please know we’re working hard to fix this issue! We’ll update you as soon as we have more information. Thanks for your patience!",
The site went on to state that users may experience difficulties with the following services:
* Sending text or voice messages to other Xbox LIVE members * Sending or receiving Beacon notifications * Receiving game invitations or notifications * Viewing messages
* Sending or receiving Beacon notifications
* Receiving game invitations or notifications
* Viewing messages
More info as it comes.