Asking XiaoBaiTu.... Thanks

I am primary applicant, my case was transferred from CSC to NSC, and the status is:
This case has been sent to another office for processing because it has jurisdiction over the case

However, my wife (dependent) case had LUD today saying:
This case has been sent for a standard interview.

How could that possible? Does this mean they will keep processing my case in NSC while having my wife's case interview in local office?

EB Case.