This solution applies to versions earlier than v5.1.
When expanding an event's details, such as a modload event, from the Process Analysis page, the "Signature Status" field is displayed as HTML content.
For example one would expect "Signed" or "Unsigned", meanwhile the field displays HTML content similar to:
As a temporary workaround, one can search for the event by MD5 to view the Signature Status of the file that way. This is a defect that is resolved in v5.1. Defect number CBUI-1322 refers to this.