Account lockout via LDAP ppolicy on some UCS server does not trigger UDM lockout on master. That's why 10_ldap/50ppolicy_account_lockout fails on a DC Backup. See also Bug 31907 Comment 8 and following. The required UDM call code has been commented out in 70_ppolicy_udm_lock.patch.
should be still relevant for UCS 4.4