Upgrade 4.2.0_01 fields not updating

Hi all,
 
We are in the process of implementing the 4.2.0_1 upgrade and have found
that the following examples below no longer update when edited and
constantly displays the default values.  Has anyone else received a
similar issue and more importantly does anyone know the issue and how to
resolve it?
 
Example field:
 
      <h3><jahia:textField name="pageTitle" title="PageTitle"
value="Browse education topics" />
      <jahia:updateFieldButton title="<img src=\"images/update.gif\"
width=\"11\" height=\"11\" border=\"0\" alt=\"E\"/>" field="pageTitle"/>
      </h3>
 
or 
 
 <content:declareField name="searchPage" title="Search page" type="Page"
/>
 <jahia:ifEditMode>
  <h3 style="color: #900;">Compulsory template settings</h3>
  <jahiaHtml:actionMenu name="searchPage" namePostFix=""
resourceBundle="jahiatemplates.Corporate_portal_templates"
useFieldSet="false" >
  <p>Search page used:
 
   <content:pageField name="searchPage" id="searchPage"
valueId="searchPageVal">
    <logic:notEmpty name="searchPageVal">
     <a href="<bean:write name='searchPageVal' property='url'/>">
      <bean:write name='searchPageVal' property="title" filter='false'/>
     </a>
    </logic:notEmpty>
    <logic:empty name="searchPageVal">
     <span style="color:#900;font-weight:bold;">Not set</span>
    </logic:empty>
    <jahia:updateFieldButton field="searchPage" title="<img
src='/images/update.gif' width='11' height='11' border='0' alt='Update
Search page URL' />" />
   </content:pageField>
  </p>
  </jahiaHtml:actionMenu>
 </jahia:ifEditMode>
 
which gives the following error message:  ERROR
[org.jahia.taglibs.html.actions.ActionMenuTag] - Couldn't find any
object with name searchPage
 
Many thanks in advance.
 
Graham

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