User with AdminGroup can't add members to a group

We’re running RT 2.0.13 with postgres 7.1.3.

I want to delegate the ability to add and delete members of groups to
another user. When I set AdminGroup at the global level for that user,
the user can delete group members, however, when they add a member RT 1)
replies with “Member Added” but 2) doesn’t actually add the new
group member.

Has anyone else seen this problem?

Any suggestions about how to correct the problem?

Thanks,

Bob Shafer
University of Denver