Af:commandMenuItem action only works first time

Question

I am using the af:panelPage, and have added a menu1 facet that contains an af:menuTabs component with 3 af:commandMenuItems. I'd like the selection of each tab to invoke a bean 'action', where I'll set some flags that control the rendering of different subviews.
I really like JDeveloper and ADF Faces... but I must be misunderstanding something basic. It all seems easy, and when I run and select one of the tabs, the correct 'action' is called and all works great. But when I then select a different tab, the 'action' is not called. Nothing happens after this.
I'm still learning both web-aps and JSF stuff, so hopefully I'm just doing something dumb.
The .jspx stuff looks like:
<?xml version='1.0' encoding='windows-1252'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.0"
 xmlns:f="http://java.sun.com/jsf/core"
 xmlns:h="http://java.sun.com/jsf/html"
 xmlns:c="http://java.sun.com/jsp/jstl/core"
 xmlns:af="http://xmlns.oracle.com/adf/faces/EA16"
 xmlns:afh="http://xmlns.oracle.com/adf/faces/EA16/html">
<jsp:output omit-xml-declaration="true" doctype-root-element="HTML"
 doctype-system="http://www.w3.org/TR/html4/loose.dtd"
 doctype-public="-//W3C//DTD HTML 4.01 Transitional//EN"/>
<jsp:directive.page contentType="text/html;charset=windows-1252"/>
<f:view>
<afh:html>
<afh:head title="try1">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252"/>
</afh:head>
<afh:body>
<af:form>
  <af:panelPage binding="#{backing_rmMain.panelPage1}">
    <f:facet name="menu1">
      <af:menuTabs binding="#{backing_rmMain.mainTabsBar}">
        <af:commandMenuItem text="Overview"
          binding="#{backing_rmMain.overviewTab}"
          action="#{backing_rmMain.overviewTabAction}"/>
        <af:commandMenuItem text="Configuration Setup"
          binding="#{backing_rmMain.configTab}"
          action="#{backing_rmMain.configTabAction}"/>
        <af:commandMenuItem text="Results View"
          binding="#{backing_rmMain.resultsTab}"
          action="#{backing_rmMain.resultsTabAction}"/>
      </af:menuTabs>
    </f:facet>
    <f:subview id="overviewPage" rendered="#{backing_rmMain.showOverview}">
      <jsp:include page="/WEB-INF/pages/Overview.jspx"/>
    </f:subview>
    <f:subview id="configPage" rendered="#{backing_rmMain.showConfig}">
      <jsp:include page="/WEB-INF/pages/Config.jspx"/>
    </f:subview>
    etc...
  </af:panelPage>
</af:form>
</afh:body>
</afh:html>
</f:view>
</jsp:root>
The backing bean action handlers simply set some booleans and return (I've tried returning both null and a simple string value... I'm not using navigation rules for this). If I set breakpoints, the action handlers get called, but only for the first selection.
Thanks for any suggestions or help.
Don

Answer 1

After a couple of days of "try this, try that" I've concluded that the problem was caused by the <jsp:include>. As I'm learning, one must be careful when mixing JSF and ADF components, as well as how components are nested within containers.
I was hoping there would be a way to visually develop a page fragment in one file, and then include it in another file. But I could not find a way to do this.
What I'm doing for now is:
1. Create a jspx file for my sub-page (so I can develop it graphically).
2. Create a jspf fragement file, and include that in my main page using <jsp.directive.include>.
3. copy/paste from the jspx file to the jspf file to test (but only copy the portion between the <af:form> block.
Seems to work. I'm open to better suggestions.
Don