hello mojang.. I have trouble with Minecraft app. everytime i open my Minecraft..i need to login..that is ok for me..but what most frustrating is all my worlds are lost..i already change the settings to save the world in application..but everytime it will go to last settings which are to save in external..everytime I open Minecraft app, i need to login and each time my world lost.. everything lost..I really frustrated..i already clear the cache..please do something about it..