diff --git a/app/eva_common.py b/app/eva_common.py
index 4ec58d3..47358ff 100644
--- a/app/eva_common.py
+++ b/app/eva_common.py
@@ -1799,7 +1799,7 @@ def gen_cross_imbalance_problems(road_delay_infos, roads_dir_dict, cross_phase):
         max_src = road_src_dict[max_roadid] if max_roadid in road_src_dict else None
         min_src = road_src_dict[min_roadid] if min_roadid in road_src_dict else None
         if max_src is None or min_src is None:
-            return detail, suggestion, total_num
+            return detail, suggestion, total_num, problem_info_detail
         rate = int(round(max_stop_times_road.delay_info.stop_times, 2) / round(min_stop_times_road.delay_info.stop_times, 2) * 100) if min_stop_times_road.delay_info.stop_times > 0 else 0
         total_num = 1
         detail = [