Smart Operation Functionality Error

Hello, I am attempting to use the new smart operation functionality in Manufacturing: Work Execution to report the actual elapsed time spent by a resource executing a work order operation. I followed the feature release document to complete setups for the resource, resource instance, work center, and workstation. I have also ensured that both ORA_RCS_HOUR_UOM and RCS_DEFAULT_UOM_CLASS_CODE_FOR_SVC_DURATION contain the correct profile values. When I go to complete a work order operation using the workstation, I complete a quantity and then click "Done" at which point the system generates the following error: