Issue description:

Server crashed after starting autocraft and keep crashing after restart.

What happens:

Server crash

What you expected to happen:

Item craft and no crashes

Steps to reproduce:

1. Autocraft something
2. Wait for a second
   ...

Version (Make sure you are on the latest version before reporting):

• Minecraft: 1.11.2
• Forge: 1.11.2-13.20.0.2228
• Refined Storage: 1.4.1

Does this issue occur on a server? [yes/no]
yes

If a (crash)log is relevant for this issue, link it here:

http://pastebin.com/SivfK1gf

UPD: System crafted some invisible items, that crashes client.

http://pastebin.com/B4LXdhYw