When clicking on an indexed report in Web Viewer, the report does not provide an Index selection or open up. When clicking on the same indexed report again, an error page is displayed. This is occurs regardless of Java type/version JDK v8u151 or v8u251 or JRE v8u251.
Release : 12.1
Component : CA OUTPUT MANAGEMENT WEB VIEWER FOR ALL PLATFORMS
Changing the Tomcat Services Properties under the Log On tab from a specified "This account" to "Local System account" resolved the problem - after WAR files were re-deployed.