https://github.com/xamarin/XamarinCommunityToolkit/issues/1046

src/CommunityToolkit/Xamarin.CommunityToolkit/Views/AvatarView/AvatarView.shared.cs

@@ -354,23 +354,16 @@ async void OnSourcePropertyChanged(bool isBindingContextChanged)
 
 				try
 				{
-					var imageStreamLoadingTask = GetImageStreamLoadingTask(source, imageLoadingTokenSource.Token);
-					if (imageStreamLoadingTask != null)
+					if (source is UriImageSource uriImageSource)
 					{
-						using var stream = await imageStreamLoadingTask;
-						if (stream != null)
-						{
-							var newStream = new MemoryStream();
-							stream.CopyTo(newStream);
-							newStream.Position = 0;
-							Image.IsVisible = true;
-							source = ImageSource.FromStream(() => newStream);
-						}
-						else
-						{
-							Image.IsVisible = false;
-							source = null;
-						}
+						var getStream = new Func<CancellationToken, Task<Stream>>(async (token) => uriImageSource.Uri != null ? await uriImageSource.GetStreamAsync(token) : null);
+						var stream = await getStream.Invoke(imageLoadingTokenSource.Token);
+
+						source = stream != null
+							? ImageSource.FromStream(async (token) => stream?.CanRead ?? true ? stream : (stream = await getStream.Invoke(token)))
+							: null;
+
+						Image.IsVisible = source != null;
 					}
 					else
 						Image.IsVisible = await imageSourceValidator.IsImageSourceValidAsync(source);
@@ -402,20 +395,5 @@ async void OnSourcePropertyChanged(bool isBindingContextChanged)
 
 			return size * .4;
 		}
-
-		Task<Stream> GetImageStreamLoadingTask(ImageSource source, CancellationToken token)
-			=> source switch
-			{
-				IStreamImageSource streamImageSource => streamImageSource.GetStreamAsync(token),
-				UriImageSource uriImageSource => uriImageSource.Uri != null
-					? new UriImageSource
-					{
-						Uri = uriImageSource.Uri,
-						CachingEnabled = uriImageSource.CachingEnabled,
-						CacheValidity = uriImageSource.CacheValidity
-					}.GetStreamAsync(token)
-					: Task.FromResult<Stream>(null),
-				_ => null
-			};
 	}
 }