When trying to view the Gateway Audit events the Policy Manager displays an error instead of showing the Gateway Audit Events window.
When creating an error report the following error or similar can be observed:
java.lang.IllegalArgumentException: No enum constant
The file C:\users\<username>\.l7tech\ssg.properties contains invalid entries.
The solution is to either fix this entries or delete the complete file.
Deleting the file will remove any presets and will create a new ssg.properties file at the old location.