Tabular Report in Upgrade


I am working on upgrade from XE to EnterpriseOne 9.1 for one of my client.There are few financial tabular custom report in XE.The reports have row and column override (not vocabulary) with other custom reports.When we move the custom object from XE to E9.1. In E9.1 some of the reports are giving weird output (not giving same output as in XE). After looking into the issue we found that column override were not working in E9.1 whereas only row override is working as expected.If anybody face the similar kind of Issue or suggest any workaround?