We have an employee whose resident is in Ohio and UI Jurisdiction is in WA and his wages and tax amo

Employee is Resident in Ohio (OH) but works in Washington State (WA). For the past two pay periods his Wages on the pay statement is Overstated (doubled), and thus affected his tax withholding amount as well. We checked his employee tax records and is correctly set up. We also do not see any overrides for him. 

Does anyone know why this is happening? Your help is greatly appreciated.

Thank you very much for your help.