Trace you own session using dbms_system / set events

For debugging … Make sure the session has a direct execute grant on dbms_system package.

Level 12 makes sure to include the waits and bind data. dbms_system

for i in (select sid, serial# from v$session where audsid=SYS_CONTEXT('USERENV','SESSIONID'))
    sys.dbms_system.set_ev ( si => i.sid, se => i.serial#, ev => 10046, LE => 12, nm => '');
end loop;
ALTER SESSION SET EVENTS '10046 trace name context forever, level 12';

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