hm i guess this is just multiplayer sorry for that
i have noticed this too
this is because authentication servers are down and are for everyone the ones that are still on servers get to stay but if they leave they cant join back until authentication servers are back online.
ok thanks yeah i made a maze out of bedrock and put wooden doors with villigers and my brother was my test subject and i noticed that the zombies wouldn't break the doors.
lol this is a bug in 1.7.2 you can light creepers with flint and steel but it dosn't work in dispensers
Yes Sir.
if you have a bukkit or a server with any plugins it could be doing that.