Symantec Data Loss Prevention
14.6, 15.0, 15.1, 15.5
The localhost log shows an error stating:
"Error reading blob...."
In any case, this does not affect the functionality of the system.
An update is planned for a later release to lower the level of these log entries from "SEVERE" to "INFO".
And the update will also correct the incorrectly clickable link in the center pane.