From 20ae423bbe075d10ce6f3e9b22d470dfb3c07495 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BD=95=E5=86=A0=E5=B3=B0?= <33317070@qq.com>
Date: Tue, 2 Jun 2026 10:53:35 +0800
Subject: [PATCH] fix #734

---
 .../ResourceManager/Operation/UnloadAllAssetsOperation.cs   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Assets/YooAsset/Runtime/ResourceManager/Operation/UnloadAllAssetsOperation.cs b/Assets/YooAsset/Runtime/ResourceManager/Operation/UnloadAllAssetsOperation.cs
index c5033d92..a8b58e23 100644
--- a/Assets/YooAsset/Runtime/ResourceManager/Operation/UnloadAllAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/ResourceManager/Operation/UnloadAllAssetsOperation.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using UnityEngine;
 
 namespace YooAsset
@@ -72,7 +73,10 @@ namespace YooAsset
                 // 释放所有资源句柄
                 if (_options.ReleaseAllHandles)
                 {
-                    foreach (var provider in _resManager.ProviderDic.Values)
+                    // 注意：创建快照，因为释放句柄可能触发自动卸载逻辑（AutoUnloadBundleWhenUnused），
+                    // 进而修改 ProviderDic 容器，导致遍历时抛出 InvalidOperationException。
+                    var snapshot = new List<ProviderOperation>(_resManager.ProviderDic.Values);
+                    foreach (var provider in snapshot)
                     {
                         provider.ReleaseAllHandles();
                     }