diff --git a/src/log4net/Util/AppenderAttachedImpl.cs b/src/log4net/Util/AppenderAttachedImpl.cs
index e1ed3502..9657ef85 100644
--- a/src/log4net/Util/AppenderAttachedImpl.cs
+++ b/src/log4net/Util/AppenderAttachedImpl.cs
@@ -71,9 +71,7 @@ public int AppendLoopOnAppenders(LoggingEvent loggingEvent)
       return 0;
     }
 
-    _appenderArray ??= _appenderList.ToArray();
-
-    foreach (IAppender appender in _appenderArray)
+    foreach (IAppender appender in _appenderList.ToArray())
     {
       try
       {
@@ -116,9 +114,7 @@ public int AppendLoopOnAppenders(LoggingEvent[] loggingEvents)
       return 0;
     }
 
-    _appenderArray ??= _appenderList.ToArray();
-
-    foreach (IAppender appender in _appenderArray)
+    foreach (IAppender appender in _appenderList.ToArray())
     {
       try
       {
@@ -173,7 +169,6 @@ private static void CallAppend(IAppender appender, LoggingEvent[] loggingEvents)
   public void AddAppender(IAppender appender)
   {
     appender.EnsureNotNull();
-    _appenderArray = null;
     _appenderList ??= new(1);
     if (!_appenderList.Contains(appender))
     {
@@ -223,7 +218,7 @@ public AppenderCollection Appenders
   {
     if (_appenderList is not null && name is not null)
     {
-      foreach (IAppender appender in _appenderList)
+      foreach (IAppender appender in _appenderList.ToArray())
       {
         if (name == appender.Name)
         {
@@ -246,7 +241,7 @@ public void RemoveAllAppenders()
   {
     if (_appenderList is not null)
     {
-      foreach (IAppender appender in _appenderList)
+      foreach (IAppender appender in _appenderList.ToArray())
       {
         try
         {
@@ -258,7 +253,6 @@ public void RemoveAllAppenders()
         }
       }
       _appenderList = null;
-      _appenderArray = null;
     }
   }
 
@@ -283,7 +277,6 @@ public void RemoveAllAppenders()
       {
         _appenderList = null;
       }
-      _appenderArray = null;
     }
     return appender;
   }
@@ -307,11 +300,6 @@ public void RemoveAllAppenders()
   /// </summary>
   private AppenderCollection? _appenderList;
 
-  /// <summary>
-  /// Array of appenders, used to cache the appenderList
-  /// </summary>
-  private IAppender[]? _appenderArray;
-
   /// <summary>
   /// The fully qualified type of the AppenderAttachedImpl class.
   /// </summary>
@@ -320,4 +308,4 @@ public void RemoveAllAppenders()
   /// log message.
   /// </remarks>
   private static readonly Type _declaringType = typeof(AppenderAttachedImpl);
-}
\ No newline at end of file
+}