Please see Drupal Core issue cue: Taxonomy terms loses hierarchy in admin backend list screen when 'Tags' is set in settings"
Not sure if this is a Drupal, or a WordPress Import problem.
Note: Marked issue as 'miscellaneous', as not sure this is a code problem in WordPress Import.
Comments
Comment #1
lavamind commentedIf I understand correctly, after importing your blog, you lost the taxonomy hierarchy?
Comment #2
Anonymous (not verified) commentedThank you for replying.
Not directly after. It appears to lose and gain hierarchy as described in the Drupal core issue I posted above:
Comment #3
lavamind commentedThis isn't a bug. If you enable "Tags" mode (also known as free tagging) in a vocabulary, then Drupal ignores the hierarchy of the terms. This is by design. See http://drupal.org/node/818156