Yup. I'm still missing the point, because I can successfully copy the contents of my [User] field to a custom, string type, field, and the data populates as expected.
i.e. If [User] contains "Joe Blow; Administrator", that's what gets copied into my custom field.
Perhaps start from the beginning and let us know what you are trying to achieve by copying the data?
Is "Ingrid" set up as a user under View > Users"
-What i am trying to achieve is writing the user as a String to the tag itself (that is, the name of the actual user).
-The User "Ingrid" is set up under view- users, I have applied it to the file (a flac-file in this instance), and the User-filed is populated in the program.
-However writing the tag to the file does not write the "User"-field to the tag.
- I create the custom field "user custom".
- I choose the file, right click and choose "library tools" - "move/copy fields"
- I copy the user field to the "user custom" field
- The "User custom"-field is populated with "1000" (instead of ingrid)
- If I write the tag, the "user custom"-field is written, with the value 1000.
I hope that was somewhat more understandable.