The Workday connector Quick Connector for Cloud does not see the 'Last_Day_Work' attribute.
In WORKDAY.Employee class has attribute Last_Day_Work.
IF you do WORKDAY API call get-employee THEN the Last_Day_Work attribute is retrieved successfully.
Note, Issue was with WORKDAY API v22, while QC-WORKDAY allows you to select up to v20 (and not v22)
Enhancement request (TF00412133) has been submitted to Development for consideration in a future release of One Identity Quick Connect for Cloud Services.