Image Corruption With Caching on Xamarin.Forms Android

Here is my source code.
https://gist.github.com/NVentimiglia/2285c8ea452dbe2d4714

In short, when I cache an image, it becomes corrupted (mono-color)

Here is a ContentView which includes a spinner and a image encapsulated in a grid. It has one main bindable property, source, which accepts a string uri. When bound, the content view shows a spinner while loading the image in the background using a "CachedHttpClient" (included). This client will first check Personal Storage and return the byte[] if found. If not it will return a byte[] from an async request. Once completed, the bytes are passed to native to be re-sized to the exact size of the control and then passed to the child image as an image source.

The first time this runs It works perfectly, however, when I reload the view the image is corrupted. I see a mono-color (grey or blue blobs... an amalgamation of all pixels ?) in place of the image.

My instincts tell me my I/O logic is wrong but... it is dead simple.

        public void Write(string fname, byte[] data)
        {
            lock (_syncLock)
            {
                var path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), Group);

                if (!Directory.Exists(path))
                    Directory.CreateDirectory(path);


                var filePath = Path.Combine(path, fname);
                File.WriteAllBytes(filePath, data);

                //Not working either
                //var base64String = Convert.ToBase64String(data);
                //File.WriteAllText(filePath, base64String);


            }
        }
    public byte[] Read(string fname)
        {
            lock (_syncLock)
            {

                var path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), Group);

                if (!Directory.Exists(path))
                    return null;

                var filePath = Path.Combine(path, fname);

                if (!File.Exists(filePath))
                    return null;

                //Not working either
                // var data = File.ReadAllText(filePath);
                //return Convert.FromBase64String(data);

                //Not working
                return File.ReadAllBytes(filePath);
            }
        }

Next I looked at my image resizeing method

    public byte[] ResizeImage(byte[] imageData, int width, int height)
        {
            // Load the bitmap
            using (Bitmap originalImage = BitmapFactory.DecodeByteArray(imageData, 0, imageData.Length))
            {
                using (Bitmap resizedImage = Bitmap.CreateScaledBitmap(originalImage, (int)width, (int)height, false))
                {
                    using (MemoryStream ms = new MemoryStream())
                    {
                        resizedImage.Compress(Bitmap.CompressFormat.Png, 95, ms);
                        return ms.ToArray();
                    }
                }
            }
        }

I have read reports of android image bugs. Any links to bug reports or workarounds would be appreciated.