From 04d0608e606d3afb0c667761806b2bec972c2743 Mon Sep 17 00:00:00 2001
From: Chandler Cox <mr.chandlercox@gmail.com>
Date: Thu, 30 Jul 2026 22:02:53 -0500
Subject: [PATCH] Preload assembly for dynamic support in editor

---
 Source/Engine/Engine/NativeInterop.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/Engine/Engine/NativeInterop.cs b/Source/Engine/Engine/NativeInterop.cs
index 304270b34..d6d7e26d9 100644
--- a/Source/Engine/Engine/NativeInterop.cs
+++ b/Source/Engine/Engine/NativeInterop.cs
@@ -1758,6 +1758,9 @@ namespace FlaxEngine.Interop
                 assembly.GetType("System.Linq.Expressions.Compiler.DelegateHelpers")
                         .GetMethod("MakeNewCustomDelegate", BindingFlags.NonPublic | BindingFlags.Static).CreateDelegate<Func<Type[], Type>>();
 
+                // Load Microsoft.CSharp assembly into collectible ALC for dynamic binder support
+                scriptingAssemblyLoadContext.LoadFromAssemblyPath(typeof(Microsoft.CSharp.RuntimeBinder.Binder).Assembly.Location);
+
                 // Create dummy delegates to force the dynamic Snippets assembly to be loaded in correcet ALCs
                 MakeNewCustomDelegateFunc(new[] { typeof(void) });
                 {