in 11.5 can't view nested cursors in date grid

When I run the following query with nested cursors in the editor, I can 
view the first level of nested cursor by double clicking (CURSOR), but 
not subsequent levels--although it does pop up the 'Cursor Edit' window, 
like it is trying...  It was a while ago, but I do remember being 
impressed that this feature worked in a prior version of Toad.

SELECT Szbstdn_pidm,
                   Szbstdn_num_semesters_adj,
                   Szbstdn_housing_id,
                   Szbstdn_icpeer_username,
                   Q1.Szbques_code,
                   Q1.Szbques_order,
                   Q1.Szbques_required || ' ' || Q1.Szbques_label 
Szbques_label,
                   Q1.Szbques_question_text,
                   Q1.Szbques_control_type,
                   Q1.Szbques_footnote,
                   Q1.Szbques_filter_label,
                   CURSOR (
                        SELECT Q2.Szbques_sub_order,
                               Q2.Szbques_question_text,
                               CURSOR (
                                    SELECT Szbansw_answer_number,
                                           Szbansw_label,
                                           Szbansw_answer_text,
                                           Szbansw_default_answer,
                                              Szbansw_ques_code
                                           || '#;;#'
                                           || Szbansw_ques_sub_order
                                           || '#;;#'
                                           || Szbansw_answer_number
                                           || '#;;#'
                                              Update_key
                                      FROM Szbansw A
                                     WHERE     A.Szbansw_ques_code = 
Q2.Szbques_code
                                           AND Q2.Szbques_sub_order =
A.Szbansw_ques_sub_order
                                           AND NOT ( A.Szbansw_ques_code =
'CAMPUSAREA'
                                                    --FRESHMAN CANT LIVE 
IN APARTMENTS_
                                                    AND 
A.Szbansw_answer_number IN
                                                           (5, 6)
                                                    AND 
G.Sgbstdn_styp_code = 'F')
                                  ORDER BY A.Szbansw_ques_sub_order,
                                           A.Szbansw_answer_number)
                                  Options,
                               CURSOR (
                                  SELECT Szsprfl_answer_number, Answer_text
                                    FROM Szqansw R
                                   WHERE     R.Szsprfl_pidm = S.Szbstdn_pidm
                                         AND R.Szsprfl_ques_code = 
Q2.Szbques_code
                                         AND Q2.Szbques_sub_order =
R.Szsprfl_ques_sub_order)
                                  Responses
                          FROM Szbques Q2
                         WHERE     Q1.Szbques_code = Q2.Szbques_code
                               AND Q2.Szbques_control_type <> 'RANK'
                               AND NOT (    Q2.Szbques_code = 'CAMPUSAREA'
                                        --FRESHMAN CANT LIVE IN APARTMENTS_
                                        AND Q2.Szbques_sub_order IN (5, 6)
                                        AND G.Sgbstdn_styp_code = 'F')
                      ORDER BY Q2.Szbques_order,
                               Q2.Szbques_sub_order NULLS FIRST)
                      Questions
              FROM Sgbstdn G, Szbstdn S, Szbques Q1
             WHERE     G.Sgbstdn_pidm = P_pidm
                   AND G.Sgbstdn_pidm = S.Szbstdn_pidm
                   AND G.Sgbstdn_term_code_eff =
                          (SELECT MAX (B.Sgbstdn_term_code_eff)
                             FROM Sgbstdn B
                            WHERE     G.Sgbstdn_pidm = B.Sgbstdn_pidm
                                  AND B.Sgbstdn_term_code_eff <=
                                         ithaca.szhousterm ())
                   AND Sgbstdn_stst_code = 'AS'
                   AND Szbques_sub_order = 0
          ORDER BY Q1.Szbques_order



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