2.6 release appears to be broken

After upgrading this site to use the 2.6 SIN module, any save of a page using SIN field fails with
Column 'field_comp_ssn_value' cannot be null query: INSERT INTO cs_aca_content_type_newcomposers (vid, nid, field_comp_lastname_value, field_comp_web_url, field_comp_web_title, field_comp_web_attributes, field_comp_shortbio_value, field_comp_cv_value, field_comp_cv_format, field_comp_resume_value, field_comp_user_value, field_comp_ssn_value, field_comp_bio_value, field_comp_bio_format, field_comp_olduid_value, field_comp_birthdate_value, field_comp_deceased_value, field_comp_email_email, field_comp_postal_mail_pref_value, field_cphoto_fid, field_cphoto_list, field_cphoto_data, field_comp_firstname_value, field_comp_aca_email_contact_email) VALUES (22395, 21844, 'Ziolek', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, '0', NULL, NULL, NULL, 'Eric', NULL) in /var/www/drupal-6.13/sites/all/modules/cck/content.module on line 1213.