Issue Description:

Furnace alchemy array causing crash

What happens:

Furnace alchemy array ticking entity after moving so far away from it (guessing range for it to draw life) causes crash

What you expected to happen:

Steps to reproduce:

1. place furnace array
2. have items in it (probably longer processing time easier to reproduce)
3. walk away from array

...

Affected Versions (Do not use "latest"):

• BloodMagic: BloodMagic-1.12.2-2.2.8-91
• Minecraft: 1.12.2
• Forge: forge1.12.2-14.23.2.2654
  crash-2018-04-20_22.22.03-server.txt

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