The issue is because I was binding dataTable in different pages to different bean properties but using the same name for the bean property.
e.g.
pageA.xhtml
<ace:dataTable binding="#{pageABean.TableUC}">
pageB.xhtml
<ace:dataTable binding="#{pageBBean.TableUC}">
When I changed the property name in pageBBean to TableUC1 instead of TableUC the issue is solved.