With one of the albums here:
https://nsfw.xxx/
https://images2.imgbox.com/a4/9d/HjzeP7uU_o.jpg
There are some issues (a red spinner appears on many videos)

Album URL
https://nsfw.xxx/user/manuelferraratv
For example, the first three videos from this album feature a red spinner.

But their errors are different (perhaps because their addresses are different too):
https://b.i.getapic.me/pf3x.png

Interestingly, for videos with a preview.redd.it URL, the sieve works if you hover your cursor not over the link icon, but simply over the video thumbnail (as usual).