Crash to launcher when loading game.

[TheQuadShot]

It says that the cfg file is open, but it's not
Forge .1481
EnderStorage .33

http://pastebin.com/FCXP8Xqp

This happens about every 3rd launch, If I re-launch it will clear most of the time

[TheQuadShot]

It looks like this can be re-pro'd on a dedicated server fairly easily. My server crashes about 5 or 6 times in a row before it finally starts. It also appears to be code chicken mods in general, or maybe it's in the core?
http://pastebin.com/zGK6B4WF
http://pastebin.com/eZTgib6t
http://pastebin.com/YpReUjT3
http://pastebin.com/jh6RC2ue

[Chicken-Bones]

From experience, this tends to happen if 2 applications are accessing the file at once. Either multiple minecraft versions, or an antivirus

[TheQuadShot]

Multiple instances isn't an issue(I've checked), nor is my antivirus(i've white listed the entire dir, just in case.), and in about 30 failures it's always 1 of the 3 modules.