That's happened to me so many times I started obsessively downloading the stuff I like. I must be on the way to becoming a data hoarder by now. It's just so incredibly aggravating, the video was right there a day ago and now it's gone. Feels like getting gaslighted. It's sad in an existential way too. The universe worked so hard to create that data and now it's just gone? Not if I can help it.