ADF taskflow rendering problem during run time

Hi
I have my webcenter portal application created with login.jspx page
I have dragged and dropped my bounded taskflow(login-taskflow.xml) into my page as region
I can able to see my default page fragment content at design time. But it is displaying empty page at in run time. Region contents are not getting displayed
Login-taskflow.xml contains two page fragments login.jsff,firstTimeHere.jsff
Code of Login.jspx:
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
 <f:loadBundle basename="oracle.webcenter.portalframework.sitestructure.resource.PortalAppPageResource"
 var="portalResource"/>
<f:view>
 <af:document title="#{portalResource['login_title']}" id="d1">
 <af:form id="f1">
 <af:panelStretchLayout id="psl1" bottomHeight="0px">
 <f:facet name="center">
 <af:panelStretchLayout id="psl2">
 <f:facet name="center">
 <af:panelGroupLayout id="pgl1" halign="center">
 <af:region value="#{bindings.Logintaskflow1.regionModel}" id="r1"/>
 </af:panelGroupLayout></f:facet></af:panelStretchLayout></f:facet></af:panelStretchLayout>
 </af:form> </af:document>
 </f:view></jsp:root>
I want to confirm is it because of surrounded tag elements of <af:region>.
Help me in this.

loginPageDef.xml
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
 version="11.1.1.55.96" id="loginPageDef"
 Package="oracle.webcenter.portalapp.pages">
<parameters>
 <parameter id="page_info"
 value="title=login;desc=;keywords=;createdBy=weblogic;createDate=2014-12-22T15:54:32;lastUpdatedBy=weblogic;lastUpdateDate=2014-12-22T15:54:32;permissionClass=oracle.webcenter.security.auth.HierarchicalResourcePermission;target=serviceID=oracle.webcenter.page,scopeID=s8bba98ff_4cbb_40b8_beee_296c916a23ed,resourceID=/oracle/webcenter/portalapp/pages/login.jspx;excluded=false;style="/>
 <parameter id="page_title" value="login"/>
</parameters>
<executables>
 <variableIterator id="variables"/>
 <page viewId="${preferenceBean.defaultPageTemplate}"
 id="pageTemplateBinding" Refresh="ifNeeded"/>
 <taskFlow id="Logintaskflow1"
 taskFlowId="/WEB-INF/Login-taskflow.xml#Login-taskflow"
 activation="deferred"
 xmlns="http://xmlns.oracle.com/adf/controller/binding"/>
</executables>
<bindings/>
<permission permissionClass="oracle.webcenter.security.auth.HierarchicalResourcePermission"
 target="serviceID=oracle.webcenter.page,scopeID=s8bba98ff_4cbb_40b8_beee_296c916a23ed,resourceID=/oracle/webcenter/portalapp/pages/login.jspx"
 xmlns="http://xmlns.oracle.com/adf/security">
 <privilege-map operation="create" privilege="create"/>
 <privilege-map operation="delete" privilege="delete"/>
 <privilege-map operation="edit" privilege="update"/>
 <privilege-map operation="personalize" privilege="personalize"/>
 <privilege-map operation="view" privilege="view"/>
</permission>
</pageDefinition>
But the same code is working in Fusion web application project.

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