Affects Version/s: Minecraft 13w36a
Fix Version/s: None
Environment:System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_10'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'
The world doesn't generate stone and dirt on and above Y=64, it should be noted that this was trying to be generated more than 80,000 blocks away from spawn, therefore it is probably not a high priority although, the world wouldn't be this buggy had i not have used the 'AMPLIFIED' world type even so far away from spawn.
Seed = 7273872244004645297