diff --git a/src/port/EterPythonLib/PythonWindowManager.cpp b/src/port/EterPythonLib/PythonWindowManager.cpp
index 7863c17f..f8056c11 100644
--- a/src/port/EterPythonLib/PythonWindowManager.cpp
+++ b/src/port/EterPythonLib/PythonWindowManager.cpp
@@ -808,13 +808,6 @@ namespace UI
 
 		SetMousePosition(x, y);
 		CWindow * pPointWindow = __PickWindow(m_lMouseX, m_lMouseY);
-		if (x == 470 && y == 380) {
-			std::printf(">>> C++ RunMouseMove(470, 380): m_lMouse=(%ld, %ld), pPointWindow=%s (type=%s, is_show=%d)\n",
-				m_lMouseX, m_lMouseY,
-				pPointWindow ? pPointWindow->GetName() : "NULL",
-				pPointWindow ? typeid(*pPointWindow).name() : "none",
-				pPointWindow ? pPointWindow->IsShow() : 0);
-		}
 
 		if (g_bShowOverInWindowName)
 		{
diff --git a/tests/port/port_login_flow_test.cpp b/tests/port/port_login_flow_test.cpp
index 1d9177db..a0a090fb 100644
--- a/tests/port/port_login_flow_test.cpp
+++ b/tests/port/port_login_flow_test.cpp
@@ -164,6 +164,13 @@ static bool pump_until(double seconds, const std::function<bool()>& done)
 
 // Runs a fixed number of frames: the wait between a mouse move and its click must not depend on how
 // many frames a loaded machine fits into a wall-clock slice (ctest -j).
+// CPythonNetworkStream::GamePhase (40250) refreshes the inventory/safebox windows at most every 300 ms,
+// so a slot can still be empty in the UI after player/safebox state already holds the item.
+static void pump_ui_refresh()
+{
+	pump_until(0.35, [] { return false; });
+}
+
 static void pump_frames(int count)
 {
 	for (int i = 0; i < count && PythonBoot::IsAppLooping(); ++i)
@@ -881,6 +888,7 @@ int main(int argc, char** argv)
 				return py_true(("__import__('player').GetItemIndex(0) == " + std::to_string(FakeLoginServer::kShopItemVnum) +
 				                " and __import__('player').GetElk() == " + bought_gold).c_str());
 			}));
+			pump_ui_refresh();
 			click(1, bag0);
 			CHECK(py_true("__import__('mouseModule').mouseController.isAttached()"));
 			click(1, std::make_pair(shelf0.first + 32, shelf0.second));
@@ -1067,6 +1075,7 @@ int main(int argc, char** argv)
 			std::printf("port_login_flow_test: safebox slot 0 at %d %d, bag slot 0 at %d %d\n", safe0.first, safe0.second, bag0.first, bag0.second);
 
 			// Checkout: drag from safebox slot 0 to inventory slot 0
+			pump_ui_refresh();
 			click(1, safe0);
 			CHECK(py_true("__import__('mouseModule').mouseController.isAttached()"));
 			click(1, bag0);
@@ -1077,6 +1086,7 @@ int main(int argc, char** argv)
 			}));
 
 			// Checkin: drag from inventory slot 0 back to safebox slot 0
+			pump_ui_refresh();
 			click(1, bag0);
 			CHECK(py_true("__import__('mouseModule').mouseController.isAttached()"));
 			click(1, safe0);