From 9346f6c527419780e3e2b00b88f0a466b86b168f Mon Sep 17 00:00:00 2001
From: yairm210 <yairm210@hotmail.com>
Date: Mon, 25 Aug 2025 11:33:14 +0300
Subject: [PATCH] Handle mods removing techs - remove from techsToResearch list

---
 core/src/com/unciv/logic/BackwardCompatibility.kt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/src/com/unciv/logic/BackwardCompatibility.kt b/core/src/com/unciv/logic/BackwardCompatibility.kt
index 792bd3a3a4..b85b4a51e7 100644
--- a/core/src/com/unciv/logic/BackwardCompatibility.kt
+++ b/core/src/com/unciv/logic/BackwardCompatibility.kt
@@ -128,6 +128,11 @@ object BackwardCompatibility {
             for (tech in civInfo.tech.techsResearched.toList())
                 if (!ruleset.technologies.containsKey(tech))
                     civInfo.tech.techsResearched.remove(tech)
+            
+            for (tech in civInfo.tech.techsToResearch.toList())
+                if (!ruleset.technologies.containsKey(tech))
+                    civInfo.tech.techsToResearch.remove(tech)
+            
             for (policy in civInfo.policies.adoptedPolicies.toList())
                 if (!ruleset.policies.containsKey(policy))
                     civInfo.policies.adoptedPolicies.remove(policy)