Describe the bug
A clear and concise description of what the bug is.

Steps to Reproduce
Please include steps we can take to reproduce the bug:

1. Launch Minecraft
2. Create a World
3. Go over to a villager who has a weapon (Ex. Archer, Warrior, or Hero)
4. Tell them to Follow You in the interact menu.
5. Walk around for a little bit (I usually consider this step done if they teleport to me)
6. Tell them to move freely

• After this they usually go to a spot in their village and then kill themselves, sometimes attacking others before death.
  This only happens to villagers who have weapons. (Although they will not kill themselves while told to stay or if they are following you, along as they don't get to this spot they should be fine. But if they get to the spot and then leave it they will still kill themselves while looking sharply to the left.)

Minecraft Information

• Minecraft Version: 1.12.2]
• Forge Version: forge-1.12.2-14.23.5.2847
• MCA Version: 6.1.0-universal
• Launcher: Standard (Forge?)

Mods

• Biomes-O-Plenty
• Dynamic Trees
• EpicSeigeMod
• Guide-Api
• Jei
• Mantle
• MCA
• MechSoldiers
• Mekanisim
• Mekanisim Generators
• Meka.. Tools
• Millenarie
• Mo-Creatures-Mod
• Optifine
• Overlord
• Pams Harvestcraft
• Tconstruct
• Vein Miner Mod
• Worleycaves

Additional context.
The spot I am referring to is random per village but all of the other villagers effected by this bug will go to the same spot.
(Turns out the random spot is probably their place of work)