Game crashed while attempting to use a Wand of the Forest to camouflage a group of Spectral Platforms (I was trying to make them all look like Stone). Crash Log seems to indicate a problem with the Hidden block from Railcraft (and there doesn't seem to be a way to turn off the hidden blocks in Railcraft's config anymore)

Crash Log:
http://paste.ee/p/j80uw

Forge Log:
http://paste.ee/p/pg3FB

I can also post this to the Railcraft Issue Tracker. I just don't know if I should.

It's a derp on my end, will fix.

Similar bug here( http://pastebin.com/gHpKgBDA ). As long as there are no other tile entities next to the blocks, this loop won't happen.