Users may experience difficulties with the following services:
Joining other Xbox LIVE members in online games
Affecting the following LIVE Platforms:
Xbox 360 Console
4/8/2013 6:42:59 AM PDT:
Are you a Silver member experiencing problems when attempting to load saved games in Minecraft? We’re aware of this issue and working to fix it as soon as possible! Thanks for your patience! When we get more information we will update you.