Workaround solution from BSI
For employees who reside in VA or MD and work in DC, pass certificate code RC:3 instead of RC:1
and nexus indicator NC:0 insted of NC:1 to process correctly.
To pass RC:3 - Set courtesy Withholding "Allowed" for tax authorities VA nd MD in table view V_T5UX9_COUWH
To pass NC: 0 Set nexu indicator to "Primary (default)" for Rs. Tax. Authorities VA and MD in the table view V_T5UTRC