You got two problems :
1 : "If you got this block from a wrench, which is NOT directly belonging to IC2... report it to that mod NOT GregTech" (this means you have to report the bug to gravisuit).
2 : You are using an ancient version of GregTech. Currently there is a new Wrenching API implemented by greg.
1) Yes, I realize that. But it's not GraviSuite's fault the server crashed immediately after placing, and that the block wouldn't load as an assembling machine. Upon placing the block, it picks up the glitch block with all other IC2-compatible wrenches.
2) That one's my fault, I had completely forgotten that it's a 1.4.7 pack. Still, there may or may not be a bug present in the code. All I want to know is if it has been fixed or not, and if it hasn't, it probably should be.