Caused by: us.jts.fortress.FinderException: findUsers caught LDAPException=4 msg=size limit exceeded
at us.jts.fortress.rbac.dao.unboundid.UserDAO.findUsers(UserDAO.java:1369)
at us.jts.fortress.rbac.UserP.search(UserP.java:80)
at us.jts.fortress.rbac.DelAdminMgrImpl.delete(DelAdminMgrImpl.java:401)
The number of users under this organization unit is zero. So this seems to be bug.