Minecraft Version 1.12.2

Forge Version FTB Revelations

Mod Version 3.1.3

Describe your problem, including steps to reproduce it

Putting iron bars in with an Extruder MK2 causes purple/black blocks to come out instead. The MK1 puts them out just fine but wont retract them like I want it to.

Any other comments?

Working a lot better now - bars render, and should be connected. One thing not working well is ambient occlusion, but that's hard to fake.

Fixed in 3.1.4 release.