Describe the bug
If I make any armor (chest, helmet, boots or leggins) using a piece of Vulcanite with any TWO other different materials, as soon as you put on the armor that you made, not just the game, but the entire server freezes.

To Reproduce
Steps to reproduce the behavior:

1. Make an armor piece using three different materials, one of this materials needs to be Vulcanite.
2. When you complete the armor piece, simply put it on, and the game will freeze.

Expected behavior
The game shouldn't freeze because I combined 3 different materials, I guess.

Versions: DO NOT write "the latest"

• Metallurgy 4: Reforged: Metallurgy-4-Reforged-0.2.0
• Forge: forge-1.12.2-14.23.5.2838
• Minecraft: 1.12.2
• Modpack : https://drive.google.com/file/d/1Focf6I6SczV9fhzR1Zovhx_EfZDbTZlw/view
• Conflicting mod : conarm-1.12.2-1.2.4
• Other mods you think could cause issues: TConstruct-1.12.2-2.12.0.135

Duplicate of #147