12.2.5 ADOP Failed Cutover

Good afternoon,

After apply "R12.AD.C.Delta.8 (Patch 21841299) and R12.TXK.C.Delta.8 (Patch 21830810)." following the Note ID 1617461.1 I had the following problem at the end of the process during CUTOVER phase:

Flipping snapshots in run and patch editions.

    [ERROR]     Failed to execute SQL statement:

                      declare

                        result varchar2(10);

                     begin

                        ad_zd_adop.flip_snapshots;

                     exception when others then

                        update ad_adop_sessions set status='F'

                        where adop_session_id=60;

                        commit;

                        raise_application_error(-20001,'Error while calling ad_zd_adop.flip_snapshots.' || sqlerrm);

                     end;

    [ERROR]     Error Message:

    [ERROR]     ORA-20001: Error while calling ad_zd_adop.flip_snapshots.ORA-00001: unique constraint (APPLSYS.AD_SNAPSHOTS_U2) violated