diff --git a/resources/tester/helper_408_radius_downstream.cjs b/resources/tester/helper_408_radius_downstream.cjs
index 72c8e9e68..6f53ddc1b 100644
--- a/resources/tester/helper_408_radius_downstream.cjs
+++ b/resources/tester/helper_408_radius_downstream.cjs
@@ -19,6 +19,7 @@ const STUBS = {
     },
     centerDirectionOf: () => null,
   },
+  "@ui/ui_template_elements": { showToast: () => {} }, // 곡선 삭제 경고(430)
 };
 
 function loadTs(file) {
diff --git a/resources/tester/test_383_2_route_keys.py b/resources/tester/test_383_2_route_keys.py
index 7269ee30d..d995591b3 100644
--- a/resources/tester/test_383_2_route_keys.py
+++ b/resources/tester/test_383_2_route_keys.py
@@ -64,7 +64,8 @@ def test_이음_끌기_걸기_한_줄_창_가로채기() -> None:
     assert pointer.count("bindRouteEditKeys(") == 1
     keys = _read("B05_Profile_UI_RouteEdit_Keys.ts")
     assert 'window.addEventListener("keydown", onKeyDown, true)' in keys  # 앞서 받음(capture)
-    assert 'lastPointerWithin(".b05-routeedit")' in keys
+    # 본 평면만(425) — B06 겹침 평면 위 화살표는 안 먹음
+    assert 'lastPointerWithin(".b05-route__main .b05-routeedit")' in keys
     assert "event.preventDefault();\n    event.stopPropagation();" in keys
     assert "state.apexLock[index] === true" in keys  # 고정 IP 는 안 옮김
     assert "shortfallCrossed(" in keys  # 하한 검사 = 끌기와 같음