Issue description:

Client Crash when you try to power controller.

Steps to reproduce:

1. Place Controller.
2. Power it.
3. Voila!
   ...

Version:

• Minecraft: 1.12.2
• Forge: 1.12.2-14.23.4.2732
• Refined Storage: 1.6-201

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

Crash-report

Eh, I can't reproduce this. What mods are you using?

Are you using Optifine?

Ah, I was able to reproduce with Optifine installed. It will no longer crash now. Unfortunately, you won't be able to enjoy fullbright textures with Optifine installed.