Why do Actual Labor Units Reset to Zero When Scheduling?

Using Oracle Primavera Cloud, have a WBS Summary activity that I am attempting to update the Actual Labor Units for. The Duration Type is "Fixed Duration & Units".

I set the Actual Units for the resources in the "Resource Assignment" tab to a particular value (say 100 hours). I schedule the project. It retains the Actual Units as I assigned it. I update the Finish date to be completed for the Activity. I schedule the project again. It resets the Actual Units to zero.

I change the Activity Type to "Activity Dependent" and repeat the steps, and when I schedule the project, the Actual Units retains value that I assigned.