My internet went down last night. At first, I was able to access my downloads and watched part of Stranger Things that I downloaded, incidentally the downloaded file is saved to my internal storage rather than the SD card.
However, when I switched my tablet back on, I couldn't access the 'My Downloads' part of the Netflix app, so couldn't watch again.
I'm quite surprised some of Netflix's own aren't available for download yet. Checked to see if Fuller House was for available for download and it wasn't.