PL/SQL AQ notification works in XE but not in our Enterprise Edition

Question

Hello,
I am trying to get a Queue up and working and have ran through several examples, but I cannot get the Notify to work in our development environment but it works just fine in my local XE instance.
Below is the code that WORKS in XE but does not call the procedure in the Enterprise Edition of Oracle:\
Please note I may manually DBMS_AQ.DEQUEUE the queued item -- that works just fine, but the intent is the have it notify the procedure (this is still hashing out this technology so keep that in mind during critiquing).
What is different between XE and Enterprise Edition in these regards or what is it I should check?
(I got the job_queue_processes increased as noted in the below)
GRANT EXECUTE ON dbms_aq TO aq;
GRANT EXECUTE ON dbms_aqadm TO aq;
GRANT CONNECT, RESOURCE, aq_administrator_role TO aq;
begin
  dbms_aqadm.grant_system_privilege('ENQUEUE_ANY','aq',FALSE);
  dbms_aqadm.grant_system_privilege('DEQUEUE_ANY','aq',FALSE);
  commit;
end;
drop procedure demo_queue_callback_procedure;
BEGIN
        DBMS_AQADM.STop_QUEUE ( queue_name => 'aq.streams_queue_1' );
        DBMS_AQADM.DROP_QUEUE ( queue_name => 'aq.streams_queue_1' );
        DBMS_AQADM.DROP_QUEUE_TABLE ( queue_table => 'aq.streams_queue_1_table'
                                     ,FORCE       =>TRUE );
END;
BEGIN
        DBMS_AQADM.CREATE_QUEUE_TABLE (
                  queue_table        => 'aq.streams_queue_1_table'
                 ,queue_payload_type => 'aq.APP_INFO'
                 ,multiple_consumers => TRUE );
       DBMS_AQADM.CREATE_QUEUE (
          queue_name  => 'aq.streams_queue_1',
          queue_table => 'aq.streams_queue_1_table'
       DBMS_AQADM.START_QUEUE (
         queue_name => 'aq.streams_queue_1'
   END;
CREATE TABLE aq.queue_message_table
   ( message VARCHAR2(4000)  , ins_date date default sysdate);
CREATE or replace PROCEDURE aq.demo_queue_callback_procedure(
                     context  RAW,
                     reginfo  SYS.AQ$_REG_INFO,
                     descr    SYS.AQ$_DESCRIPTOR,
                     payload  RAW,
                     payloadl NUMBER
                     ) AS
      r_dequeue_options    DBMS_AQ.DEQUEUE_OPTIONS_T;
      r_message_properties DBMS_AQ.MESSAGE_PROPERTIES_T;
      v_message_handle     RAW(16);
      o_payload            aq.APP_INFO;
   BEGIN
      r_dequeue_options.msgid := descr.msg_id;
      r_dequeue_options.consumer_name := descr.consumer_name;
      DBMS_AQ.DEQUEUE(
         queue_name         => descr.queue_name,
         dequeue_options    => r_dequeue_options,
         message_properties => r_message_properties,
         payload            => o_payload,
         msgid              => v_message_handle
      INSERT INTO aq.queue_message_table ( message )
      VALUES ( '[' || o_payload.parameter || ';' || o_payload.value || ';' || to_char(o_payload.dte,'ddMONyy:hh:mi:ss') ||']' );
      COMMIT;
   END;
BEGIN
       DBMS_AQADM.ADD_SUBSCRIBER (
          queue_name => 'aq.streams_queue_1',
          subscriber => SYS.AQ$_AGENT(
                           'aq_queue_subscriber',
                           NULL,
                           NULL )
       DBMS_AQ.REGISTER (
          SYS.AQ$_REG_INFO_LIST(
             SYS.AQ$_REG_INFO(
                'streams_queue_1:aq_queue_subscriber',
                DBMS_AQ.NAMESPACE_AQ,
                'plsql://aq.demo_queue_callback_procedure',
                HEXTORAW('FF')
          1
   END;
DECLARE
       r_enqueue_options    DBMS_AQ.ENQUEUE_OPTIONS_T;
       r_message_properties DBMS_AQ.MESSAGE_PROPERTIES_T;
       v_message_handle     RAW(16);
       o_payload            aq.app_info;
       vreclst DBMS_AQ.AQ$_RECIPIENT_LIST_T;
    BEGIN
      o_payload := aq.app_info('msg4',4,sysdate);
     --vreclst(1):= sys.aq$_agent('ANYONE','', null);
      --r_message_properties.recipient_list:= vreclst;
      DBMS_AQ.ENQUEUE(
         queue_name         => 'aq.streams_queue_1',
         enqueue_options    => r_enqueue_options,
         message_properties => r_message_properties,
         payload            => o_payload,
         msgid              => v_message_handle
     COMMIT;
   END;
select * from aq.queue_message_table   ;
SELECT *
    FROM   aq.aq$streams_queue_1_table;
set serveroutput on   
    DECLARE
       r_dequeue_options    DBMS_AQ.DEQUEUE_OPTIONS_T;
       r_message_properties DBMS_AQ.MESSAGE_PROPERTIES_T;
       v_message_handle     RAW(16);
       o_payload            aq.app_info;
    BEGIN
      --r_dequeue_options.dequeue_mode := DBMS_AQ.BROWSE;
          r_dequeue_options.consumer_name := 'aq_QUEUE_SUBSCRIBER';
      DBMS_AQ.DEQUEUE(
         queue_name         => 'aq.streams_queue_1',
         dequeue_options    => r_dequeue_options,
         message_properties => r_message_properties,
         payload            => o_payload,
         msgid              => v_message_handle
      DBMS_OUTPUT.PUT_LINE(
         '*** message is [' || o_payload.parameter || ';' || o_payload.value || '] ***'
   commit;
   END;
    select * from dba_queue_schedules ;
    select * from dba_objects;
SELECT *
   FROM v$parameter
  WHERE name = 'aq_tm_processes'
     OR name = 'job_queue_processes';
job_queue_processes = 10;
aq_tm_processes = 0;
SELECT *
   FROM v$parameter
  WHERE name = 'aq_tm_processes'
     OR name = 'job_queue_processes';
in XE
aq_tm_processes     => 0
job_queue_processes => 10
Ora Type:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production    
PL/SQL Release 11.2.0.1.0 - Production                                          
CORE     11.2.0.1.0     Production                                                        
TNS for IBM/AIX RISC System/6000: Version 11.2.0.1.0 - Production               
NLSRTL Version 11.2.0.1.0 - Production  
in XE
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production             
PL/SQL Release 11.2.0.2.0 - Production                                          
CORE     11.2.0.2.0     Production                                                        
TNS for 32-bit Windows: Version 11.2.0.2.0 - Production                         
NLSRTL Version 11.2.0.2.0 - Production
the
job_queue_processes => 4

Answer 1

Got it working,
in running this
SELECT owner, queue_name, queue_table, consumer_name
FROM dba_queue_subscribersI saw that there was an initial queue consumer that was overlapping, I dropped the initial queue and recreated all and it now works.