Summary of the problem Can't autocraft in AE2 Pack Version 1.2.1 What is the bug? Patterns in Molecular Assembler interface, try crafting through ME Terminal (of any type) and the GUI closes. Happening on multiple users/PC's on 1.2.1 and 1.3 Mod & Version Applied Energistics 2 - in 1.2.1 Link to log file Is it repeatable? set up a network with: ME Controller Crafting CPU's ME Drives Molecular Assemblers with patterns in interfaces Try crafting through a ME Crafting Terminal Known Fix Rebuilt AE2 network in a new chunk. Worked for a few minutes then stopped again.