After creating a new world you're returned to the main menu and the following exception is produced in the log.
[ ERROR][ root.py:3339]:Error while creating world. {world => /Users/BenLewis/Library/Application Support/minecraft/MCEdit/saves/sessionLock.}
Traceback (most recent call last):
File "/Users/BenLewis/Desktop/Games/Minecraft/MCEdit/MCEdit-Unified/leveleditor.py", line 3334, in createNewLevel
newlevel.saveInPlace()
File "/Users/BenLewis/Desktop/Games/Minecraft/MCEdit/MCEdit-Unified/pymclevel/infiniteworld.py", line 1180, in saveInPlace
self.checkSessionLock()
File "/Users/BenLewis/Desktop/Games/Minecraft/MCEdit/MCEdit-Unified/pymclevel/infiniteworld.py", line 1152, in checkSessionLock
raise SessionLockLost, "Session lock lost. This world is being accessed from another location."
SessionLockLost: Session lock lost. This world is being accessed from another location.
After creating a new world you're returned to the main menu and the following exception is produced in the log.