This does not happen everytime, and I am not even necessarily sure it is caused by Cyclops Core (its just the first mod referenced in the crash)

http://pastebin.com/7y9H9PDk

If you happen to know why its happening or can point me in the right direction of whats causing it, just let me know.

I'm not really sure what could cause a crash like this, might be something funky in your JVM. If anyone else is experiencing this crash, please let me know.

WE've recently begun experiencing this crash as well. Doesn;t happen every boot up. http://pastebin.com/8fJRpR7e

@UnNinja This seems to be a completely different crash, could you create a separate issue for it? Thanks.

I'm not able to reproduce this with any of the Cyclops mods loaded on the lastest Forge version.
I suspect that you are using a mod that is somehow messing with class loading, which could result in such strange crashes.
It is very likely that such a crash will also occur in other mods when this mod is not loaded.

I suggest that you have a look at the mods you are using, and try removing them one by one to see which one causes the problem.

I feel like it was an issue with minetweaker. Can probably just close this for now. I was just recently able to update CraftTweaker and Modtweaker, and have not had any of those crashes since. Using Sponge on the server I need to stay on the same forge versions they use, so I sometimes behind a version or 2 on some mods.

Sorry for the bother