During account creation Change Auditor consolidates events in to one event "User Object Added". That means that any attributes added to the object during this request whether or not they have values do not generate events as they are not 'changes' yet as such.
原因
This behavior is by design.
対策
WORKAROUND
None.
STATUS
We have logged an enhancement ID TF00374794 for consideration in a future release of Change Auditor.
Defect ID
TF00374794
追加情報
The enhancement request is to see if all attributes created/set on the user object during its creation can produce events similar to be way the 'InTrust for AD' log works.