We worked around this incompatibility by turning off the plugin for private and hidden groups, that is we can use it with public groups only, and without a problem. We would like to use the plugin for private and hidden groups, hopefully after a future update 🙂
@kingkong954 looks like things are being reviewed over at drupal.org http://drupal.org/node/1036824 and needless to say, I wish @aliciagh and this all the best 🙂
We are also looking! gracias — is there a required Drupal module?
We want to bridge WP and Drupal, blogging in a WP network (maybe with BuddyPress) with shared users and authentication, maybe more with Drupal. (Hmm, and your Moodle integration, fascinating 🙂 we use Moodle but it has not been integrated.)