Issue description: When placing a syringe filled of blizz blood the server on SMP or client on SSP crashes instantly

Steps to reproduce:

Place down a spawner from rftools, open up its GUI an place a syringe of blood from a blizz inside and instant crash.

Versions:

• Minecraft: 1.12.2
• Forge: *.5.2847
• McJtyLib: 3.5.4
• RFTools: 7.72

Relevant logs, if any: Crash report @ https://pastebin.com/Lfq78Fcd

Looks like it may also be the same issue for #1967

Please post your rftools.cfg file. The problem is in there.

Can you see if you can reproduce this with just RFTools, Thermal Foundation, and their dependencies?

This is how it was at the crash time

rftools.txt

With an updated config adding in the various spawning options for blizz, it works fine without crashing, it would seem due to no prev option for a recipe so to speak for the blizz that was causing the crash(at least in my case)

TLDR; Many issues had cropped up, but re-generating config and re-adding the needed spawn options has solved everything.