It's usually a good sign that your application is being worked on. There are lots of things happening at the back end which could trigger a ghost update, e.g. Finalization of your Eligibility and security.
Ok Thank you so much. Regarding that, I contacted IRCC through web form. They mentioned that
- The eligibility is valid.
- The security background verification is valid.
- The criminal background verification is valid.
Here, "Valid" indicates that all(eligibility, security, criminality) got passed?