I added this filter…
(&(objectClass=organizationalPerson)(memberOf=cn=AllImUsers,ou=IM Groups,ou=Groups,ou=IT,ou=company,dc=gdsx,dc=com))
And then suddenly it doesn’t see a lot of users as users, it has them marked as “external users” with no local accounts. I remove this, and they show up. interestingly enough, they ARE in the AllIMUsers group.