hello, What is happening? some time i need to cancel/relaunch a demand to craft to be able to start it. i just block at the simulation screen and after some try it will let me craft it... What is expected? i can launch the craft and dont need to cancel/ re ask many time for the same job ^^ How to reproduce? not sure but just build an auto craft. Server or Single Player?: multi player Screenshot?: http://imgur.com/lItwTaA Crash Log?: no all the time but when clicking start after selecting the amount of item some time it appears : http://imgur.com/7ddECWD (sorry it's a screen didnt find it in the log file :/) hoping you can found the issue, i think since i upgrade that sometime my network reset itself (when looking in the terminal i can see just the craft or only some items... and i need to reeopen it to see all the content.) that's maybe the cause of this issue?

A task requires 1 CPU at a time, if its occupied by other crafting jobs, you cant request a craft. Automatic crafting jobs via Export Bus for example uses smaller CPUs if possible

i will have not posted that here if it was the cause :) i have 30 cpu free and it still dont launch all the time...

Can you post the actual log?, the screen shot from the console is quite limited and doesn't tell us the full story.

well that's the problems i dont found the complete error in the log just the : [Server thread/ERROR] [AE2:S/Applied Energistics 2]: Error: java.util.ConcurrentModificationException : null appearing some time. i can upload the file if you want but it's 60.000 lines long and there is no warning or error other than that :/

arf the error seems to appear when clicking on next after chosing the number of items some time it dont go into the simulation screen and you need to reclick on the next button. it's the fml-server-log.log file there are no other file inside the server folder to be found with log :/