Primefaces 5.1 Data table input text ajax - ajax

Question

I am using Primefaces 5.1 on glassfish 4. I have a view scoped bean behind an editable data table. As soon as the input text looses focus it returns to the old value and the cellEdit ajax event inside dataTable never fires.
For the last 2 weeks i have searched and tried numerous stackoverflow/ BalucC blog/ coderanch etc but I couldn't solve it. Input text simply does not retain the input. The edited text is actually present in the view because if i again try to edit the cell the edit value is there only until the input text has the focus.
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:form id="formbio">
<p:growl id="msgsbio" showDetail="true"/>
<p:contextMenu for="biolist" widgetVar="cMenu">
<p:menuitem value="Edit Cell" icon="ui-icon-search" onclick="PF('cellBio').showCellEditor();return false;"/>
<p:menuitem value="Hide Menu" icon="ui-icon-close" onclick="PF('cMenu').hide();"/>
</p:contextMenu>
<p:dataTable var="bres" value="#{aResultEntry.biolist}" id="biolist" editable="true" editMode="cell" widgetVar="cellBio" >
<f:facet name="header" >
<p:outputLabel value="Result input for Receipt # #{aResultEntry.voucher.receiptno}" />
</f:facet>
<p:ajax event="cellEdit" listener="#{aResultEntry.onCellEdit}" update=":allresulttabs:formbio:msgsbio"/>
<p:column headerText="Attribute" style="width:150px">
<h:outputText value="#{bres.testattribid.attributename}" />
</p:column>
<p:column headerText="Result" style="width:150px">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{bres.resulttext}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{bres.resulttext}" style="width:100%" label="result"/>
</f:facet>
</p:cellEditor>
</p:column>
</p:dataTable>
<p:commandButton actionListener="#{aResultEntry.saveBioGrid()}" value="Save" id="Savebtn" update=":allresulttabs:formbio:msgsbio" immediate="true" />
</h:form>
My view scoped managed bean
#Named("aResultEntry")
#ViewScoped
public class AResultEntry implements Serializable {
,,,,,,,
public void onCellEdit(CellEditEvent event) {
Object oldValue = event.getOldValue();
Object newValue = event.getNewValue();
Object evnt=event;
if(newValue != null && !newValue.equals(oldValue)) {
FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_INFO, "Cell Changed", "Old: " + oldValue + ", New:" + newValue);
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}
......
}