On a host running Windows Server 2019 Datacenter, start Registry Editor and navigate to the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion;
Check the values of the following REG_SZ parameters: EditionID = ServerDatacenter, ProductName = Windows Server 2019 Datacenter, CompositionEditionID=ServerDatacenter;
Change to ServerStandard or Server 2019 Standard, Start Migrationsetup. Do not restart before!
