diff --git a/airflow/www/utils.py b/airflow/www/utils.py
index 48512f03faa15..8c05f378855e5 100644
--- a/airflow/www/utils.py
+++ b/airflow/www/utils.py
@@ -113,10 +113,11 @@ def get_mapped_summary(parent_instance, task_instances):
     )
 
     try_count = (
-        parent_instance.prev_attempted_tries
-        if parent_instance.prev_attempted_tries != 0
-        else parent_instance.try_number
+        parent_instance._try_number
+        if parent_instance._try_number != 0 or parent_instance.state in State.running
+        else parent_instance._try_number + 1
     )
+
     return {
         'task_id': parent_instance.task_id,
         'run_id': parent_instance.run_id,
@@ -130,6 +131,7 @@ def get_mapped_summary(parent_instance, task_instances):
 
 def get_task_summaries(task, dag_runs: List[DagRun], session: Session) -> List[Dict[str, Any]]:
     tis = session.query(
+        TaskInstance.dag_id,
         TaskInstance.task_id,
         TaskInstance.run_id,
         TaskInstance.map_index,