Recently upgraded EP from NW 7.0 to Nw 7.4. Now users are not able to open attachments in UWL work item. Where as attachments are visible both in preview and work item in new window
when the item is opened, attachments are opening from preview but not in the item. When the attachment in the item is clicked it is opening a blank window with url http:/xxx.xxx.xxx:5IN00/com.sap.portal.navigation.helperservice/html/child.html.