Xamarin Convert imageUrl to imagesource via webclient Auto Rotaion Bug - xamarin

Question

I convert imageUrl to imagesource via webclient.
Here is my Code
public static async Task<ImageSource> MakeImageSource(string url)
{
if (!string.IsNullOrEmpty(url))
{
WebClient webClient = new WebClient();
byte[] byteArray = null;
byteArray = webClient.DownloadData(url);
if (byteArray != null)
return ImageSource.FromStream(() => new MemoryStream(byteArray));
}
return "";
}
But when I convert a horizontally long image, it rotates by 90.
This is the xaml code that uses the image source.
I have binding an imageSource to a 'ProfileImage'.
<Grid>
<Frame WidthRequest="40" HeightRequest="40" Padding="0" HasShadow="False" CornerRadius="20" IsClippedToBounds="True">
<Grid>
<Image WidthRequest="40" HeightRequest="40" Aspect="AspectFill" VerticalOptions="CenterAndExpand" HorizontalOptions="CenterAndExpand" Source="profile_2"/>
<Image WidthRequest="40" HeightRequest="40" Aspect="AspectFill" VerticalOptions="CenterAndExpand" HorizontalOptions="CenterAndExpand" Source="{Binding ProfileImage}"/>
</Grid>
</Frame>
<Frame WidthRequest="15" HeightRequest="15" CornerRadius="7.5" Padding="1" HasShadow="False" BackgroundColor="White" IsClippedToBounds="True"
VerticalOptions="EndAndExpand" HorizontalOptions="EndAndExpand">
<Frame.Triggers>
<DataTrigger TargetType="Frame" Binding="{Binding UserLoginPlatform}" Value="001">
<Setter Property="IsVisible" Value="False"/>
</DataTrigger>
</Frame.Triggers>
<Image Aspect="AspectFill" Source="{Binding UserLoginPlatform}" IsVisible="true"/>
</Frame>
</Grid>
what's the problem