Hello,
I have the same problem when I download this file for example:
https://goo.gl/X3kGe2
The download completes but when I go to "All files", nothing shows up.
From what you say, I suppose this comes from the fact that only the videos ending with a known extension are displayed.
Is that right?
In the example above the file is probably downloaded, but with no extension.
I'm looking for a way to rename the downloaded file, ideally without needing a computer with iTunes to assist.
If you already have a workaround for this, it'll be good to know.
VLC for iOS 2.6.5 (265.2)
iOS 9.0.2 (134452) / iPhone 6S