Extra menu item WebDirect-6R54D in drop down

[TomEkberg]

I have a layout that uses a portal. One of the items in the portal (Author) is tied to a value list of authors. When entering the previous field and TABbing into the Author field the field contains 'WebDirect-' followed by a hex number, which varies. In addition to that, a dropdown menu appears. If one TABs out of the Author field the 'WebDirect-' with the hex digit becomes the value of the Author field. Attached is an example showing the problem. The default value (when empty) is specified by the Get(AccountName) calculation. In FileMaker Pro 18 my user login name is the default. How can I get web direct to default to the user name?