diff --git a/dashboards/grafana/Grafana-DMARC_Reports.json b/dashboards/grafana/Grafana-DMARC_Reports.json
index 0fc90622..88e9e54b 100644
--- a/dashboards/grafana/Grafana-DMARC_Reports.json
+++ b/dashboards/grafana/Grafana-DMARC_Reports.json
@@ -2681,9 +2681,7 @@
               "date_range": "Date",
               "disposition.keyword": "Disposition",
               "dkim_aligned": "DKIM",
-              "dkim_results.domain.keyword": "DKIM Domain",
               "dkim_results_combined.keyword": "DKIM Auth Result",
-              "dkim_results.selector.keyword": "DKIM Selector",
               "envelope_from.keyword": "Envelope From",
               "header_from.keyword": "Email Domain",
               "org_name.keyword": "Reporter",
@@ -3710,8 +3708,7 @@
               "envelope_from.keyword": "Envelope From",
               "header_from.keyword": "Header From",
               "source_base_domain.keyword": "Reverse DNS Base",
-              "spf_aligned": "SPF Aligned",
-              "spf_results.result.keyword": "SPF Result"
+              "spf_aligned": "SPF Aligned"
             }
           }
         }
diff --git a/tests/test_elastic.py b/tests/test_elastic.py
index 2859272c..1740d091 100644
--- a/tests/test_elastic.py
+++ b/tests/test_elastic.py
@@ -631,11 +631,12 @@ class TestAggregateDocCombinedResults(unittest.TestCase):
 
     def test_add_dkim_result_appends_combined_string(self):
         """Regression guard for issue #169: dkim_results/spf_results are
-        stored as nested object arrays, which Kibana/Grafana tables cannot
-        terms-aggregate without producing a cross-product of selector/
-        domain/result values. The composed "selector / domain / result"
-        string preserves per-signature pairing that the object-mapped
-        array loses."""
+        arrays of objects that the engine dynamic-maps as plain ``object``
+        (not ``nested``) and flattens, so Kibana/Grafana tables cannot
+        terms-aggregate their subfields without producing a cross-product
+        of selector/domain/result values. The composed
+        "selector / domain / result" string preserves the per-signature
+        pairing that the flattened array loses."""
         doc = elastic_module._AggregateReportDoc()
         doc.add_dkim_result(
             domain="example.net", selector="net1", result="fail", human_result=None
diff --git a/tests/test_opensearch.py b/tests/test_opensearch.py
index ced0170a..1c3e4996 100644
--- a/tests/test_opensearch.py
+++ b/tests/test_opensearch.py
@@ -684,11 +684,12 @@ class TestAggregateDocCombinedResults(unittest.TestCase):
 
     def test_add_dkim_result_appends_combined_string(self):
         """Regression guard for issue #169: dkim_results/spf_results are
-        stored as nested object arrays, which Kibana/Grafana tables cannot
-        terms-aggregate without producing a cross-product of selector/
-        domain/result values. The composed "selector / domain / result"
-        string preserves per-signature pairing that the object-mapped
-        array loses."""
+        arrays of objects that the engine dynamic-maps as plain ``object``
+        (not ``nested``) and flattens, so Kibana/Grafana tables cannot
+        terms-aggregate their subfields without producing a cross-product
+        of selector/domain/result values. The composed
+        "selector / domain / result" string preserves the per-signature
+        pairing that the flattened array loses."""
         doc = opensearch_module._AggregateReportDoc()
         doc.add_dkim_result(
             domain="example.net", selector="net1", result="fail", human_result=None