primefaces checkbox datatable will not check boxes on ajax event - ajax

Question

I am trying to get a primefaces checkbox datatable to select multiple rows and pass those values to the bean. I have an ajax event for rowSelect and that works fine, but the ajax for rowSelectCheckbox never fires and it is as if my checkboxes are 'unclickable'. When selecting a row the rowSelect ajax event fires and highlights the entire row and checks the checkbox. However, I am unable to check any other checkboxes off so it is obvious only the rowSelect ajax works and not the rowSelectCheckbox. Here is code:
<p:dataTable id="content-table"
var="obj"
value="#{releaseNotes.contentList}"
rows="5"
paginator="true"
style="width:100%"
selectionMode="multiple"
selection="#{releaseNotes.selectedContent}"
rowKey="#{obj.hashCode()}"
paginatorPosition="bottom"
rendered="#{releaseNotes.showContentTable}">
<p:ajax event="rowSelect" listener="#{releaseNotes.selectListenerCode}" update=":grids :buttons" immediate="true"/>
<p:ajax event="rowSelectCheckbox" listener="#{releaseNotes.checkBoxListener}" update=":grids :buttons" immediate="true" />
<f:facet name="header">Content</f:facet>
<p:column selectionMode="multiple" style="width:16px;text-align:center"/>
<c:forEach items="#{releaseNotes.columnNames}" var="columnName">
<p:column headerText="#{columnName.toLowerCase().replace('_', ' ')}"
filterBy="#{obj.get(columnName)}" filterMatchMode="contains">
<h:outputText value="#{obj.get(columnName)}"/>
</p:column>
</c:forEach>
</p:dataTable>
Thanks in advance, my first post so I apologize if I missed some etiquette for the code formatting or anything like that, just let me know I will not take offense....