I have upgraded our PI AuditViewer from 1.4.6 to 1.5.0. However, there are some activities missing from PI AuditViewer after upgrade. For example, if I add some value to certain tags, those values are not captured in the PI AuditViewer. If I edited the existing values, these actions will be recorded. Also we have used PIMSoft Sigmafine tool called "Sigmafine SQL Access" to publish data to PI Archive server. The previous version will faithfully record every actions, the upgraded version doesn't have a single trace at all. Where do I start to troubleshoot? What place should I start to look and what could possibly go wrong?