Selector in /setblock doesn't work in all cases

Lightning Creepers Not Dropping Correct Heads

Incorrect biome/preset

Cannot generate nor load worlds

Farming Fishermen?

Cannot get score of entity

Launcher will not close

Minecraft /blockdata not working on certain data tags

Pistons can push minecart rails in all directions but one

Chickens' feet do not match speed

Cannot save worlds onto internal memory

Update notes error

Comparator graphic bug