diff --git a/src/main/java/mekanism/common/tile/TileEntityFactory.java b/src/main/java/mekanism/common/tile/TileEntityFactory.java
index 9ffea1ff7..0c9dca5ad 100644
--- a/src/main/java/mekanism/common/tile/TileEntityFactory.java
+++ b/src/main/java/mekanism/common/tile/TileEntityFactory.java
@@ -447,7 +447,12 @@ public class TileEntityFactory extends TileEntityNoisyElectricBlock implements I
 
 			for(int id : inputSlots)
 			{
-				invStacks.add(InvID.get(id, inventory));
+				InvID item = InvID.get(id, inventory);
+				if(item.stack != null && item.stack.hasTagCompound())
+				{
+					return; //Don't sort items with NBT data (dupe fix)
+				}
+				invStacks.add(item);
 			}
 
 			for(InvID invID1 : invStacks)
@@ -1205,4 +1210,4 @@ public class TileEntityFactory extends TileEntityNoisyElectricBlock implements I
 	{
 		return securityComponent;
 	}
-}
\ No newline at end of file
+}