From 46441f6a030ac7d71df625b6d515e702b56e2d62 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Sat, 10 Feb 2024 18:43:15 +0100
Subject: [PATCH] Fix crash when using multi-threaded objects spawn and caching
 scripting VTables

---
 Source/Engine/Scripting/BinaryModule.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/Engine/Scripting/BinaryModule.cpp b/Source/Engine/Scripting/BinaryModule.cpp
index 44ef32503..0cded22b4 100644
--- a/Source/Engine/Scripting/BinaryModule.cpp
+++ b/Source/Engine/Scripting/BinaryModule.cpp
@@ -533,7 +533,12 @@ void ScriptingType::HackObjectVTable(void* object, ScriptingTypeHandle baseTypeH
     if (!Script.VTable)
     {
         // Ensure to have valid Script VTable hacked
-        SetupScriptObjectVTable(object, baseTypeHandle, wrapperIndex);
+        BinaryModule::Locker.Lock();
+        if (!Script.VTable)
+        {
+            SetupScriptObjectVTable(object, baseTypeHandle, wrapperIndex);
+        }
+        BinaryModule::Locker.Unlock();
     }
 
     // Override object vtable with hacked one that has calls to overriden scripting functions