Running off the mcpc.jar for bukket support. Plugins:
Essentials
Worldborder
Worldguard
Worldedit
Griefprevention
Something triggers an event where most tekkit lite items become uncraftable (but can still be created in). A server restart fixes this bug.
I'm just not sure what is causing it. Has anyone else had luck with this? I tried searching the forums but found no fixes.