diff --git a/airflow-core/src/airflow/models/dagrun.py b/airflow-core/src/airflow/models/dagrun.py
index 20ec118f33e79..7eabadd73cfb6 100644
--- a/airflow-core/src/airflow/models/dagrun.py
+++ b/airflow-core/src/airflow/models/dagrun.py
@@ -2005,6 +2005,8 @@ def schedule_tis(
             # to render start_from_trigger in the scheduler. If we need to
             # render the value in a worker, it kind of defeats the purpose of
             # this feature (which is to save a worker process if possible).
+            # Re-enabled on main by #55068 but not backported to 3.2;
+            # decision tracked at https://github.com/apache/airflow/issues/66307
             # elif task.start_trigger_args is not None:
             #     if task.expand_start_from_trigger(context=ti.get_template_context()):
             #         ti.start_date = timezone.utcnow()
diff --git a/airflow-core/tests/unit/models/test_dagrun.py b/airflow-core/tests/unit/models/test_dagrun.py
index 6aa4fc84c76ec..93bf2dcbdf428 100644
--- a/airflow-core/tests/unit/models/test_dagrun.py
+++ b/airflow-core/tests/unit/models/test_dagrun.py
@@ -2260,6 +2260,11 @@ def test_schedule_tis_only_one_scheduler_update_succeeds_when_competing(dag_make
     assert refreshed_ti.try_number == 1
 
 
+@pytest.mark.skip(
+    reason="start_from_trigger scheduling path is disabled on v3-2-test "
+    "(re-enabled on main by #55068, not backported); "
+    "tracked at https://github.com/apache/airflow/issues/66307"
+)
 @pytest.mark.need_serialized_dag
 def test_schedule_tis_start_trigger(dag_maker, session):
     """