Steps to repro:

1. Initialize a basic Volley request queueVolley.newRequestQueue(this)
2. Initialize ImageLoader with no cache imageLoader = ImageLoader(queue, NoImageCache())

class NoImageCache : ImageLoader.ImageCache {
    override fun getBitmap(url: String?): Bitmap? = null
    override fun putBitmap(url: String?, bitmap: Bitmap?) {}
}

3. Create list of items using RecyclerView and NetworkImageView as its items. For each image view, use the same URL.
4. Scroll the list fast

Result:
Some image views are not loading

Sample project: https://github.com/forceLain/VolleyResponseBug