Symptom:
Duplicated address objects, address object groups, and NAT policies, including default outbound NAT policy disappeared.
Condition or Workaround:
Occurs when the system is being configured in Japanese, and the box has been restarted.
Resolution:
Upgrading to SonicOS Enhanced 5.5.0.0 release resolves the issue.
Tracking ID: <80719>
Source: SonicOS Enhanced 5.5.0.0 Release Notes