diff --git a/src/economy.cpp b/src/economy.cpp
index 0106e87e14..b5f5f5b3ee 100644
--- a/src/economy.cpp
+++ b/src/economy.cpp
@@ -1979,6 +1979,7 @@ static void DoAcquireCompany(Company *c)
 
 	DeleteCompanyWindows(ci);
 	InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
+	InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
 	InvalidateWindowClassesData(WC_SHIPS_LIST, 0);
 	InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
 	InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
diff --git a/src/strings.cpp b/src/strings.cpp
index 2f46d4a69b..2032e44e52 100644
--- a/src/strings.cpp
+++ b/src/strings.cpp
@@ -2011,6 +2011,7 @@ bool ReadLanguagePack(const LanguageMetadata *lang)
 #endif /* ENABLE_NETWORK */
 	InvalidateWindowClassesData(WC_BUILD_VEHICLE);      // Build vehicle window.
 	InvalidateWindowClassesData(WC_TRAINS_LIST);        // Train group window.
+	InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS);// Trace restrict slots window.
 	InvalidateWindowClassesData(WC_ROADVEH_LIST);       // Road vehicle group window.
 	InvalidateWindowClassesData(WC_SHIPS_LIST);         // Ship group window.
 	InvalidateWindowClassesData(WC_AIRCRAFT_LIST);      // Aircraft group window.
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index 84face3c2b..3523b106da 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -1353,6 +1353,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 		/* We are undoubtedly changing something in the depot and train list. */
 		InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
 		InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
+		InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
 	} else {
 		/* We don't want to execute what we're just tried. */
 		RestoreTrainBackup(original_src);
@@ -1437,6 +1438,7 @@ CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint3
 		/* We are undoubtedly changing something in the depot and train list. */
 		InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
 		InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
+		InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
 
 		/* Actually delete the sold 'goods' */
 		delete sell_head;
@@ -1951,6 +1953,7 @@ CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32
 			SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
 			SetWindowDirty(WC_VEHICLE_VIEW, front->index);
 			SetWindowClassesDirty(WC_TRAINS_LIST);
+			SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 		}
 	} else {
 		/* turn the whole train around */
@@ -2164,6 +2167,7 @@ static bool CheckTrainStayInDepot(Train *v)
 		/* force proceed was not pressed */
 		if (++v->wait_counter < 37) {
 			SetWindowClassesDirty(WC_TRAINS_LIST);
+			SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 			return true;
 		}
 
@@ -2173,6 +2177,7 @@ static bool CheckTrainStayInDepot(Train *v)
 		if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
 			/* Full and no PBS signal in block or depot reserved, can't exit. */
 			SetWindowClassesDirty(WC_TRAINS_LIST);
+			SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 			return true;
 		}
 	} else {
@@ -2192,6 +2197,7 @@ static bool CheckTrainStayInDepot(Train *v)
 	if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
 		/* No path and no force proceed. */
 		SetWindowClassesDirty(WC_TRAINS_LIST);
+		SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 		MarkTrainAsStuck(v);
 		return true;
 	}
@@ -2201,6 +2207,7 @@ static bool CheckTrainStayInDepot(Train *v)
 
 	VehicleServiceInDepot(v);
 	SetWindowClassesDirty(WC_TRAINS_LIST);
+	SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 	v->PlayLeaveStationSound();
 
 	v->track = TRACK_BIT_X;
@@ -4172,6 +4179,7 @@ void Train::OnNewDay()
 
 			SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
 			SetWindowClassesDirty(WC_TRAINS_LIST);
+			SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 		}
 	}
 }
diff --git a/src/train_gui.cpp b/src/train_gui.cpp
index 4724fb98ab..5fc7371138 100644
--- a/src/train_gui.cpp
+++ b/src/train_gui.cpp
@@ -48,6 +48,7 @@ void CcBuildWagon(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p
 		/* put the new wagon at the end of the loco. */
 		DoCommandP(0, _new_vehicle_id, found->index, CMD_MOVE_RAIL_VEHICLE);
 		InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
+		InvalidateWindowClassesData(WC_TRACE_RESTRICT_SLOTS, 0);
 	}
 }
 
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 7766b77cbf..815bd60b89 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -1420,6 +1420,7 @@ void VehicleEnterDepot(Vehicle *v)
 		case VEH_TRAIN: {
 			Train *t = Train::From(v);
 			SetWindowClassesDirty(WC_TRAINS_LIST);
+			SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 			/* Clear path reservation */
 			SetDepotReservation(t->tile, false);
 			if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(t->tile);
@@ -2722,6 +2723,7 @@ void VehiclesYearlyLoop()
 	}
 	GroupStatistics::UpdateProfits();
 	SetWindowClassesDirty(WC_TRAINS_LIST);
+	SetWindowClassesDirty(WC_TRACE_RESTRICT_SLOTS);
 	SetWindowClassesDirty(WC_SHIPS_LIST);
 	SetWindowClassesDirty(WC_ROADVEH_LIST);
 	SetWindowClassesDirty(WC_AIRCRAFT_LIST);
diff --git a/src/window.cpp b/src/window.cpp
index 6538caffd2..9c308b3dbf 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1206,6 +1206,7 @@ void ChangeWindowOwner(Owner old_owner, Owner new_owner)
 			case WC_FINANCES:
 			case WC_STATION_LIST:
 			case WC_TRAINS_LIST:
+			case WC_TRACE_RESTRICT_SLOTS:
 			case WC_ROADVEH_LIST:
 			case WC_SHIPS_LIST:
 			case WC_AIRCRAFT_LIST: