Unified Auditing & ORA-00942

Let me start out by saying that I have Pure Unified Auditing enabled: I have relinked my Oracle executable and restarted my database.  DBA_AUDIT_TRAIL is dead, long live UNIFIED_AUDIT_TRAIL.

Prior to Unified Auditing there is ability to:

AUDIT DOES NOT EXIST

I have not found where Unified Auditing has the equivalent feature.

I have tried:

CREATE AUDIT POLICY FAILED_DML ACTIONS SELECT, INSERT, UPDATE, DELETE

AUDIT POLICY FAILED_DML WHENEVER NOT SUCCESSFUL

This Audit Policy does not seem to catch ORA-00942 return codes.  I have only seen it catch non-user facing/Oracle-internal return codes (10980, 2004).

Has anyone else seen this behavior or found a work around?