How do you fix MIM 2016 SP2 Portal update that fails with error DEBUG: Error 2749: Transform VL.3 invalid for package D:\Source\Service and Portal\Service and Portal.msi. Expected product version == 4.6.31.0, found product version 4.6.673.0?

Question

I am trying to update to the newest version of MIM 2016 SP2 (4.6.673.0). The Sync service updated fine but the MIM Service (Service & Portal) update fails. The verbose log contains these errors: Product: Microsoft Identity Manager Service and Portal - Update 'MIM Service & Portal Hotfix KB KB5018333' could not be installed. Error code 1603. DEBUG: Error 2749: Transform VL.1 invalid for package D:\Source\Service and Portal\Service and Portal.msi. Expected product version == 4.6.31.0, found product version 4.6.673.0 Any help would be appreciated.