Symptoms

After using the Live Instance Migration API (or Process Version Migration community utility), the Process Overview report does not reflect data fields added in the new version of the process for migrated process instances.
 

Diagnoses

This is a known issue with the Live Instance Migration API. A TFS item has been logged addressing it.
 

Resolution

An interim solution is to create a custom report that returns the correct data fields by using the Process Data SmartObject. A report parameter can be added to be able to filter by a specific process instance.