Open game crashes on loading world



Summary of the problem game crashes on loading world

Pack Version 2.5.6

What is the bug? After i updated to 1.5.6 from 1.5.5, whenever i try to load a world i had before the update the game crashes but i can still create new worlds

Mod & Version I have no idea

Link to log file

Is it repeatable? every time i launch a world i had before i updated to 1.5.6

Known Fix