From dc32b0533c134c5f3c42a3427c39ca1f88a2c879 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Sat, 3 Jun 2023 20:29:55 +0100
Subject: [PATCH] Viewport: Fix fixed vehicle route overlays not being marked
 dirty on remove

---
 src/viewport.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/viewport.cpp b/src/viewport.cpp
index c1e3cd77d1..c5a79f37ce 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -4494,8 +4494,12 @@ void AddFixedViewportRoutePath(VehicleID veh)
 
 void RemoveFixedViewportRoutePath(VehicleID veh)
 {
-	container_unordered_remove_if(_vp_fixed_route_overlays, [&](const FixedVehicleViewportRouteOverlay &it) -> bool {
-		return it.veh == veh;
+	container_unordered_remove_if(_vp_fixed_route_overlays, [&](FixedVehicleViewportRouteOverlay &it) -> bool {
+		if (it.veh == veh) {
+			it.MarkAllDirty(Vehicle::GetIfValid(it.veh));
+			return true;
+		}
+		return false;
 	});
 }