diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
index 9128c3eb8..c38e589a7 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
@@ -746,7 +746,7 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
         criterionDAO.list(Criterion.class);
         forceLoadOfChildren(Arrays.asList(taskElement));
         planningState = new PlanningState(taskElement, orderReloaded
-                .getAssociatedTasks(), allResources);
+                .getAssociatedTasks(), allResources, criterionDAO);
         forceLoadOfDependenciesCollections(planningState.getInitial());
         forceLoadOfWorkingHours(planningState.getInitial());
         forceLoadOfLabels(planningState.getInitial());
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/PlanningState.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/PlanningState.java
index 915844d72..e41f2782d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/PlanningState.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/PlanningState.java
@@ -30,7 +30,10 @@ import java.util.Set;
 import org.navalplanner.business.planner.entities.TaskElement;
 import org.navalplanner.business.planner.entities.TaskGroup;
 import org.navalplanner.business.planner.entities.TaskMilestone;
+import org.navalplanner.business.resources.daos.ICriterionDAO;
 import org.navalplanner.business.resources.daos.IResourceDAO;
+import org.navalplanner.business.resources.entities.Criterion;
+import org.navalplanner.business.resources.entities.CriterionSatisfaction;
 import org.navalplanner.business.resources.entities.Resource;
 import org.navalplanner.web.calendars.BaseCalendarModel;
 
@@ -45,10 +48,14 @@ public class PlanningState {
 
     private final TaskGroup rootTask;
 
+    private final ICriterionDAO criterionDAO;
+
     public PlanningState(TaskGroup rootTask,
             Collection<? extends TaskElement> initialState,
-            Collection<? extends Resource> initialResources) {
+            Collection<? extends Resource> initialResources,
+            ICriterionDAO criterionDAO) {
         this.rootTask = rootTask;
+        this.criterionDAO = criterionDAO;
         this.initial = new ArrayList<TaskElement>(initialState);
         this.toSave = new HashSet<TaskElement>(initialState);
         this.toRemove = new HashSet<TaskElement>();
@@ -67,9 +74,28 @@ public class PlanningState {
         for (Resource resource : resources) {
             resourceDAO.reattach(resource);
         }
+        // ensuring no repeated instances of criterions
+        reattachCriterions(getExistentCriterions(resources));
         addingNewlyCreated(resourceDAO);
     }
 
+    private void reattachCriterions(Set<Criterion> criterions) {
+        for (Criterion each : criterions) {
+            criterionDAO.reattachUnmodifiedEntity(each);
+        }
+    }
+
+    private Set<Criterion> getExistentCriterions(Set<Resource> resources) {
+        Set<Criterion> result = new HashSet<Criterion>();
+        for (Resource resource : resources) {
+            for (CriterionSatisfaction each : resource
+                    .getCriterionSatisfactions()) {
+                result.add(each.getCriterion());
+            }
+        }
+        return result;
+    }
+
     private void addingNewlyCreated(IResourceDAO resourceDAO) {
         Set<Resource> newResources = getNewResources(resourceDAO);
         doReattachments(newResources);
@@ -79,6 +105,8 @@ public class PlanningState {
     private <T extends Collection<Resource>> T doReattachments(T result) {
         for (Resource each : result) {
             reattachCalendarFor(each);
+            // loading criterions so there are no repeated instances
+            forceLoadOfCriterions(each);
         }
         return result;
     }
@@ -89,6 +117,15 @@ public class PlanningState {
         }
     }
 
+    private void forceLoadOfCriterions(Resource resource) {
+        Set<CriterionSatisfaction> criterionSatisfactions = resource
+                .getCriterionSatisfactions();
+        for (CriterionSatisfaction each : criterionSatisfactions) {
+            each.getCriterion().getName();
+            each.getCriterion().getType();
+        }
+    }
+
     private Set<Resource> getNewResources(IResourceDAO resourceDAO) {
         Set<Resource> result = new HashSet<Resource>(resourceDAO
                 .list(Resource.class));