Issue: I have been following the instructions on http://drupal.org/node/1144136 to migrate CCK fields, but when I select a field to migrate from the checklist, the following page tells me the field has been created, however, at the DB level the field_data_* table is always empty and therefore the nodes don't show up the value in either the view or edit pages. I have rolled back the migration and tried this more than a few times, even with different fields but with no luck.

Anyone been through the same issue or have an idea what might be going on?

Additional debugging notes: If I go to a node that has that field and enter a value manually and save it, the corresponding row in the field_data_* table shows up all fine.

The field_revision_* table though seems to have been populated fine. I tried copying the rows from the field_revision_* table to the field_data_* table (schema seems to be the same) to see if that might work, but it did not.