diff --git a/src/main/java/org/terasology/dynamicCities/settlements/DistrictFacetOverlaySystem.java b/src/main/java/org/terasology/dynamicCities/settlements/DistrictFacetOverlaySystem.java
index 1c97286..cd6ab06 100644
--- a/src/main/java/org/terasology/dynamicCities/settlements/DistrictFacetOverlaySystem.java
+++ b/src/main/java/org/terasology/dynamicCities/settlements/DistrictFacetOverlaySystem.java
@@ -33,7 +33,9 @@
 import org.terasology.network.NetworkSystem;
 import org.terasology.registry.In;
 
+import java.util.HashMap;
 import java.util.Iterator;
+import java.util.Map;
 
 @RegisterSystem(RegisterMode.CLIENT)
 public class DistrictFacetOverlaySystem extends BaseComponentSystem {
@@ -55,28 +57,29 @@ public class DistrictFacetOverlaySystem extends BaseComponentSystem {
 
     private EntityRef clientEntity;
 
-    private boolean isOverlayAdded;
+    private Map<EntityRef, Boolean> isOverlayAdded;
 
     @Override
     public void initialise() {
         if (networkSystem.getMode() == NetworkMode.CLIENT) {
             clientEntity = networkSystem.getServer().getClientEntity();
         }
+        isOverlayAdded = new HashMap<>();
     }
     @ReceiveEvent
     public void onAddOverlayEvent(AddDistrictOverlayEvent event, EntityRef entityRef) {
         if (networkSystem.getMode() == NetworkMode.CLIENT) {
-            if (clientEntity.getComponent(ClientComponent.class).character.getId() == entityRef.getId() && !isOverlayAdded) {
+            if (clientEntity.getComponent(ClientComponent.class).character.getId() == entityRef.getId() && !isOverlayAdded.getOrDefault(entityRef, false)) {
                 Iterator<EntityRef> entityRefs =  entityManager.getEntitiesWith(SettlementsCacheComponent.class).iterator();
                 if (entityRefs.hasNext()) {
                     minimapSystem.addOverlay(new DistrictOverlay((entityRefs.next())));
-                    isOverlayAdded = true;
+                    isOverlayAdded.put(entityRef, true);
                 } else {
                     logger.error("No SettlementCache found! Unable to create district overlay");
                 }
             }
         }
-        if (networkSystem.getMode() == NetworkMode.DEDICATED_SERVER && !isOverlayAdded) {
+        if (networkSystem.getMode() == NetworkMode.DEDICATED_SERVER && !isOverlayAdded.getOrDefault(entityRef, false)) {
             if (localPlayer.getCharacterEntity() == entityRef) {
                 Iterator<EntityRef> entityRefs =  entityManager.getEntitiesWith(SettlementsCacheComponent.class).iterator();
                 if (entityRefs.hasNext()) {
diff --git a/src/main/java/org/terasology/dynamicCities/settlements/components/DistrictFacetComponent.java b/src/main/java/org/terasology/dynamicCities/settlements/components/DistrictFacetComponent.java
index b744dc8..3aac9d9 100644
--- a/src/main/java/org/terasology/dynamicCities/settlements/components/DistrictFacetComponent.java
+++ b/src/main/java/org/terasology/dynamicCities/settlements/components/DistrictFacetComponent.java
@@ -160,7 +160,8 @@ else if (tempZoneArea.get(zone) / totalAssignedArea > culturalNeedsPercentage.ge
                             diff += TeraMath.fastAbs(tempZoneArea.get(zone) / totalAssignedArea - culturalNeedsPercentage.get(zone));
                         }
                     }
-                    diff = 1 / diff;
+
+                    diff = (diff == 0) ? 0 : 1 / diff;
                     probabilites.put(districtType, diff);
                     totalDiff += diff;
                 }