Oh I know why! I'd created a world with "x" name, then deleted it because I'd chosen the wrong type of world, and then created this one with the "x" name again!
I searched "stone tower" and "dirt tower", I didn't know it was related with chunks!
2013-03-09, 04:57:05 PM UTC
2013-03-09, 04:58:30 PM UTC
2013-03-22, 04:31:54 PM UTC
Before, the two blocks were piled.
2013-03-09_17.50.15.png
Java version 1.5_027 Ubuntu 12.04LTS Java version 1.6_027 Ubuntu 12.04LTS
Java version 1.5_027 Ubuntu 12.04LTS
Java version 1.6_027 Ubuntu 12.04LTS
Oh I know why! I'd created a world with "x" name, then deleted it because I'd chosen the wrong type of world, and then created this one with the "x" name again!
I searched "stone tower" and "dirt tower", I didn't know it was related with chunks!