Bug IL2CPP Player crashes on Delegate.CreateDelegate() with specific parameter combinations Unity 2021.3

Hi,

I am experiencing reproducible crashes when using Delegate.CreateDelegate() in IL2CPP builds in Unity 2021.3f5 LTS. I already filed a bug report (IN-3846), but did not get any response within a month. This is why I try my luck at the forums. Maybe, there is someone knowing a fix or potential workaround.

What happened
The built project crashes during the execution of method "Delegate.CreateDelegate"

How to reproduce

Environment:

• 2021.3.5f1 LTS, Windows
• Empty Unity 3D project, no specific packages installed
• Scripting Backend IL2CPP
• Default Visual Studio 2019 installation from UnityHub

Steps:

• Add "Test.cs" to any GameObject in an empty scene
  
  Code (CSharp):

  1. using UnityEngine;
  2. using System.Linq;
  3. using System.Reflection;
  4. using System.Linq.Expressions;
  5. using System;
  6.  
  7. public class Test : MonoBehaviour {
  8.     void Start() {
  9.         MethodInfo[] methodInfos = typeof(Test).GetMethods(BindingFlags.Public | BindingFlags.Static);
  10.         foreach (MethodInfo methodInfo in methodInfos) {
  11.             if (methodInfo.Name.StartsWith("Test")) {
  12.                 Func<Type[], Type> getType = Expression.GetActionType;
  13.                 var types = methodInfo.GetParameters().Select(p => p.ParameterType);
  14.                 Delegate.CreateDelegate(getType(types.ToArray()), methodInfo);
  15.             }
  16.         }
  17.     }
  18.  
  19.     public static void Test1_Ok(string s1) { }
  20.     public static void Test2_Ok(bool b1) { }
  21.     public static void Test3_Ok(string s1, bool b1) { }
  22.     public static void Test4_Crash(bool b1, string s1) { }
  23.     public static void Test5_Ok(int i1, string s1) { }
  24.     public static void Test6_Crash(int i1, bool b1) { }
  25. }
• Build the project and run

The player crashes after showing the splash screen.

Notes:

• The issue does not appear on Mono runtime
• The issue does not appear on IL2CPP Code Generation: Faster (smaller) Builds
• The issue does not appear on Unity 2020.3.34f1 LTS or Unity 2022.1.2
• The attached Test.cs contains different "Test*"-methods that have different parameters. Depending on the set of parameters, CreateDelegate works or crashes the player.
  
• The Player.log can be found in the attachment

 

Anyone?

I think, those topics also relate to the same issue:
https://github.com/YarnSpinnerTool/YarnSpinner-Unity/issues/163#issuecomment-1153148324
https://forum.unity.com/threads/rel...ate-with-your-game.437909/page-2#post-8110682