Document field metadata is not updated by Loader although the log shows a successful update.
The default security of the document field being updated is read-only and the user that loaded the CSV input file does not have the permission to edit the field.
There are two things that can be done:
- Update the default security of the field
- Include the relevant groups or individual users that are able to edit the field.
Vault Loader Documentation: Vault Loader: Create & Update Documents