Fixed #2396

core/src/mindustry/world/blocks/production/AttributeSmelter.java

@@ -49,10 +49,10 @@ public class AttributeSmelter extends GenericSmelter{
         }
 
         @Override
-        public void placed(){
-            super.placed();
+        public void onProximityUpdate(){
+            super.onProximityUpdate();
 
             attrsum = sumAttribute(attribute, tile.x, tile.y);
         }
     }
-}
+}