diff --git a/src/modules/imageresizer/ImageResizerCLI/Program.cs b/src/modules/imageresizer/ImageResizerCLI/Program.cs
index 4716730995..d24ab93bde 100644
--- a/src/modules/imageresizer/ImageResizerCLI/Program.cs
+++ b/src/modules/imageresizer/ImageResizerCLI/Program.cs
@@ -31,7 +31,7 @@ internal static class Program
         Console.InputEncoding = Encoding.Unicode;
 
         // Initialize logger to file (same as other modules)
-        CliLogger.Initialize("\\ImageResizer\\Logs");
+        CliLogger.Initialize("\\Image Resizer\\CLI");
         CliLogger.Info($"ImageResizerCLI started with {args.Length} argument(s)");
 
         try
diff --git a/src/modules/imageresizer/tests/Properties/SettingsTests.cs b/src/modules/imageresizer/tests/Properties/SettingsTests.cs
index ed182556a3..16cbceae6e 100644
--- a/src/modules/imageresizer/tests/Properties/SettingsTests.cs
+++ b/src/modules/imageresizer/tests/Properties/SettingsTests.cs
@@ -126,13 +126,10 @@ namespace ImageResizer.Properties
                 h => ncc.CollectionChanged -= h,
                 () => settings.CustomSize = new CustomSize());
 
-            Assert.AreEqual(NotifyCollectionChangedAction.Replace, result.Arguments.Action);
-            Assert.AreEqual(1, result.Arguments.NewItems.Count);
-            Assert.AreEqual(settings.CustomSize, result.Arguments.NewItems[0]);
-            Assert.AreEqual(0, result.Arguments.NewStartingIndex);
-            Assert.AreEqual(1, result.Arguments.OldItems.Count);
-            Assert.AreEqual(originalCustomSize, result.Arguments.OldItems[0]);
-            Assert.AreEqual(0, result.Arguments.OldStartingIndex);
+            // Reset is used instead of Replace to avoid ArgumentOutOfRangeException
+            // when notifying changes for virtual items (CustomSize/AiSize) that exist
+            // outside the bounds of the underlying _sizes collection.
+            Assert.AreEqual(NotifyCollectionChangedAction.Reset, result.Arguments.Action);
         }
 
         [TestMethod]
diff --git a/src/modules/imageresizer/ui/Properties/Settings.cs b/src/modules/imageresizer/ui/Properties/Settings.cs
index 542f82e0a8..a6b535a782 100644
--- a/src/modules/imageresizer/ui/Properties/Settings.cs
+++ b/src/modules/imageresizer/ui/Properties/Settings.cs
@@ -216,27 +216,15 @@ namespace ImageResizer.Properties
                 {
                     if (e.PropertyName == nameof(Models.CustomSize))
                     {
-                        var oldCustomSize = _customSize;
                         _customSize = settings.CustomSize;
 
-                        OnCollectionChanged(
-                            new NotifyCollectionChangedEventArgs(
-                                NotifyCollectionChangedAction.Replace,
-                                _customSize,
-                                oldCustomSize,
-                                _sizes.Count));
+                        OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
                     }
                     else if (e.PropertyName == nameof(Models.AiSize))
                     {
-                        var oldAiSize = _aiSize;
                         _aiSize = settings.AiSize;
 
-                        OnCollectionChanged(
-                            new NotifyCollectionChangedEventArgs(
-                                NotifyCollectionChangedAction.Replace,
-                                _aiSize,
-                                oldAiSize,
-                                _sizes.Count + 1));
+                        OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
                     }
                     else if (e.PropertyName == nameof(Sizes))
                     {