From 8d182cbc3bbf2d3d04a9c0b141bd6fb2083526bd Mon Sep 17 00:00:00 2001
From: Will Berry <73126355+wdberry@users.noreply.github.com>
Date: Fri, 10 Mar 2023 09:33:26 -0500
Subject: [PATCH] Fix invalid train object reference by validating train is
 valid before adding it to the list

---
 cybersyn/scripts/gui/trains.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cybersyn/scripts/gui/trains.lua b/cybersyn/scripts/gui/trains.lua
index 683de00..b9aa1e1 100644
--- a/cybersyn/scripts/gui/trains.lua
+++ b/cybersyn/scripts/gui/trains.lua
@@ -61,6 +61,9 @@ function trains_tab.build(map_data, player_data)
 
 	local trains_sorted = {}
 	for id, train in pairs(trains) do
+		if not train.entity.valid then
+			goto continue
+		end
 		if search_network_name then
 			if search_network_name ~= train.network_name then
 				goto continue