Like some on this thread, I tried using the Preserve update set function. The update set i'm looking for is totally missing.  I have looked for the update set in Retrieved Update sets and its not there.   All i can figure is if it was "too old" ? i mean it was In Progress, but does the "last 90 days" of the Preserve Update Set feature mean Created On date? Last Updated date?   Sometimes development is a slow simmer process!