One Syncronization problem between Gradebook and Assignments when releasing grades

Go to Gradebook tool Create a Gradebook item Title "GradebookItem", point value: 10, Release item to students? is NOT checked, click Create Go to Assignment tool Create an assignment Fill title, instructions, Open Date in the past, Grade Scale: Points, Points: 10, Associate with existing GradeBook item: Select "GradebookItem" and post. Enter as a student Click assignment Submit the assignment Click "Back to list" Click the assignment See next error   org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException: java.lang.reflect.InvocationTargetException at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:856) caused by: org.sakaiproject.tool.api.ToolException: java.lang.reflect.InvocationTargetException at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:234) caused by: java.lang.reflect.InvocationTargetException at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) caused by: org.sakaiproject.service.gradebook.shared.GradebookSecurityException: You do not have permission to perform this operation at org.sakaiproject.component.gradebook.GradebookServiceHibernateImpl$13.doInHibernate(GradebookServiceHibernateImpl.java:2290) at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:341) at org.springframework.orm.hibernate4.HibernateTemplate.execute(HibernateTemplate.java:296) at org.sakaiproject.component.gradebook.GradebookServiceHibernateImpl.getAssignmentScoreString(GradebookServiceHibernateImpl.java:2273) at org.sakaiproject.component.gradebook.GradebookServiceHibernateImpl.getAssignmentScoreString(GradebookServiceHibernateImpl.java:2341) at org.sakaiproject.component.gradebook.GradebookServiceHibernateImpl.getAssignmentScoreStringByNameOrId(GradebookServiceHibernateImpl.java:2349) at sun.reflect.GeneratedMethodAccessor1404.invoke( null :-1) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)