diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/ITaskElementDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/ITaskElementDAO.java
index 0fa8ac722..8a17fbdae 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/ITaskElementDAO.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/ITaskElementDAO.java
@@ -20,9 +20,12 @@
 
 package org.navalplanner.business.planner.daos;
 
+import java.util.List;
+
 import org.navalplanner.business.common.daos.IGenericDAO;
 import org.navalplanner.business.planner.entities.DayAssignment;
 import org.navalplanner.business.planner.entities.TaskElement;
+import org.navalplanner.business.planner.entities.TaskGroup;
 
 /**
  * @author Óscar González Fernández <ogonzalez@igalia.com>
@@ -34,4 +37,6 @@ public interface ITaskElementDAO extends IGenericDAO<TaskElement, Long> {
      */
     void removeOrphanedDayAssignments();
 
+    List<TaskElement> findChildrenOf(TaskGroup each);
+
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/TaskElementDAO.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/TaskElementDAO.java
index 7740d9f09..f53615ddf 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/TaskElementDAO.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/daos/TaskElementDAO.java
@@ -29,6 +29,7 @@ import org.navalplanner.business.planner.entities.DayAssignment;
 import org.navalplanner.business.planner.entities.GenericDayAssignment;
 import org.navalplanner.business.planner.entities.SpecificDayAssignment;
 import org.navalplanner.business.planner.entities.TaskElement;
+import org.navalplanner.business.planner.entities.TaskGroup;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Repository;
@@ -72,4 +73,11 @@ public class TaskElementDAO extends GenericDAOHibernate<TaskElement, Long>
         return getSession().createCriteria(SpecificDayAssignment.class).add(
                 Restrictions.isNull("specificResourceAllocation")).list();
     }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public List<TaskElement> findChildrenOf(TaskGroup each) {
+        return getSession().createCriteria(TaskElement.class).add(
+                Restrictions.eq("parent", each)).list();
+    }
 }
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 b17f29f64..2eac985e9 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
@@ -24,6 +24,7 @@ import static org.navalplanner.web.I18nHelper._;
 
 import java.math.BigDecimal;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Date;
 import java.util.HashSet;
@@ -33,6 +34,7 @@ import java.util.Set;
 import java.util.SortedMap;
 import java.util.TreeMap;
 
+import org.hibernate.Hibernate;
 import org.joda.time.DateTime;
 import org.joda.time.LocalDate;
 import org.navalplanner.business.calendars.entities.BaseCalendar;
@@ -43,10 +45,12 @@ import org.navalplanner.business.common.exceptions.InstanceNotFoundException;
 import org.navalplanner.business.orders.daos.IOrderDAO;
 import org.navalplanner.business.orders.entities.Order;
 import org.navalplanner.business.orders.entities.OrderElement;
+import org.navalplanner.business.planner.daos.ITaskElementDAO;
 import org.navalplanner.business.planner.entities.DayAssignment;
 import org.navalplanner.business.planner.entities.ICostCalculator;
 import org.navalplanner.business.planner.entities.Task;
 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.IResourceDAO;
 import org.navalplanner.business.resources.entities.Resource;
@@ -130,6 +134,9 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
     @Autowired
     private IWorkReportLineDAO workReportLineDAO;
 
+    @Autowired
+    private ITaskElementDAO taskDAO;
+
     @Autowired
     private IAdHocTransactionService transactionService;
 
@@ -562,11 +569,13 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
             Order orderReloaded) {
         taskElementAdapter = getTaskElementAdapter();
         taskElementAdapter.setOrder(orderReloaded);
-        planningState = new PlanningState(orderReloaded
-                .getAssociatedTaskElement(),
+        TaskGroup taskElement = orderReloaded
+                .getAssociatedTaskElement();
+        forceLoadOfChildren(Arrays.asList(taskElement));
+        planningState = new PlanningState(taskElement,
                 orderReloaded.getAssociatedTasks(),
                 resourceDAO.list(Resource.class));
-
+        forceLoadOfChildren(planningState.getInitial());
         forceLoadOfDependenciesCollections(planningState.getInitial());
         forceLoadOfWorkingHours(planningState.getInitial());
         forceLoadOfLabels(planningState.getInitial());
@@ -579,6 +588,22 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
         return result;
     }
 
+    private void forceLoadOfChildren(Collection<? extends TaskElement> initial) {
+        for (TaskElement each : initial) {
+            if (each instanceof TaskGroup) {
+                findChildrenWithQueryToAvoidProxies((TaskGroup) each);
+                List<TaskElement> children = each.getChildren();
+                forceLoadOfChildren(children);
+            }
+        }
+    }
+
+    private void findChildrenWithQueryToAvoidProxies(TaskGroup group) {
+        for (TaskElement eachTask : taskDAO.findChildrenOf(group)) {
+            Hibernate.initialize(eachTask);
+        }
+    }
+
     private void forceLoadOfWorkingHours(List<TaskElement> initial) {
         for (TaskElement taskElement : initial) {
             OrderElement orderElement = taskElement.getOrderElement();