EDIT: I just noticed that the field itself has disappeared during some recent updates, not sure why. Other CCK tokens work just fine.
In my Pathauto settings, for a certain node content type I'm using the CCK token [field_subtitle-raw]. Ever since updating Drupal and a bunch of plugins, new aliases are using that literal string, with the square brackets and CCK field name.
This doesn't seem to happen with standard token fields (like [title-raw] for instance).