The Tooltip for a Tab shows only for a new generated Tab but not for the exiting ones. I create the tabs dynamically at runtime.

here is my Code:
 <c:forEach id="cForEachId" items="#{tabViewControllerBean.tabs}" var="tab">
<ace:tabPane id="tab_#{tab.getId()}" cache="staticAuto" >
<f:facet name="label">
<h:panelGrid columns="2" cellspacing="2">
<h:outputLabel id="tab_Label_#{tab.getId()}" value="#{tab.getTitel()}" />
<h:commandLink styleClass="fa fa-fw fa-close" style="margin-left: 15px;" title="Close this tab" actionListener="#{tabViewControllerBean.removeCurrentTab}" />
</h:panelGrid>
</f:facet>
<ace:tooltip for="tab_Label_#{tab.getId()}" rendered="#{menuBuilderBean.isEDVUser}" hideDelay="300" showDelay="100" showEffectLength="200" hideEffectLength="300" showEffect="fade" hideEffect="fade">
<h:outputLabel value="#{tab.getUrl()}" />
</ace:tooltip>
<h:panelGroup style="height:90VH" layout="block">
<f:subview id="sub_#{tab.getId()}">
<iframe id="iFrame_#{tab.getId()}" height="100%" width="100%" src="#{tab.getUrl()}" scrolling="auto" style="border:none;" ></iframe>
</f:subview>
</h:panelGroup>
</ace:tabPane>
</c:forEach>