OK, so I have seen that you folks have been able to download things, so I have been investigating further. And while some videos HAVE worked – they have downloaded properly – others just sit there “analyzing forever.” To begin with, I just tried a small video that was posted today, and it didn’t work – and I gave up. But after trying quite a few over the course of some time, I think I have figured out “what’s not working” – and it’s “newer videos.” Videos posted today, perhaps yesterday, or something like that. Videos that were posted “a few days ago” are downloading properly.
So, I presume there’s some sense that “the resolutions you’re looking for haven’t been propagated yet.” And thus the program simply isn’t finding what it’s looking for. At any rate, this is what I can add to the discussion at this point. Thanks to everyone who has been involved in this discussion!