Minecraft Xbox 360's latest update is rolling out now, 4J Studios has Tweeted, though it might take a while to appear in your region. The update adds no new content, but addresses a number of problems reported following Minecraft Xbox 360 update 1.7.3, which introduced pistons, shears and an autosave. Here's the full changelog. - Fix for a crash with pistons at the edge of the world - Fix for a crash due to a thread safety issue usually caused by pistons - Fix for issue with operating pistons on chunk boundaries - Fix for a rendering flicker with active pistons - Fix for rendering slowdown due to lighting issues - Fix for rain going through blocks (raining indoors) - Fix for Marketplace not launching when unlocking skin pack after selecting a locked skin in the trial version of the skin pack - Fix for bug allowing locked skins to be selected if they are beside a free skin - Fix for misaligned player scores when viewed under the "My Score" leaderboard filter - Fix for the constant button press sounds when rotating a character in the skin select screen - Fix for the constant sound effect played on the sign text entry - Fix for thunder not being audible - Fix for third person front view not displaying fire. Source: http://m.oxm.co.uk/44497/latest-minecraft-xbox-360-update-now-available-fixes-pistons-lighting-dlc-skins/
I have been having trouble with pistons disappearing on me. Mainly when they are in large numbers though, Still hope it fixes this.