Activating OG Subgroups makes all taxonomy terms not visable.

repeatable on drupal 4.7.
after setting up og, glossary, and faq modules. successfully adding content to each. activating og_subgroups module breaks all category related functionality. all vocabularys' terms are not displayed under admin->categories. poked around in db trying to quickly find problem. terms exist. nothing obvious to me. don't have time to pursue fix. removed og_subgroups module. terms still not accessible. wiped db, restored from backup. onward.