After trying to upload a 40 minute video to Youtube a couple of times, growing increasingly frustrated and, frankly, hateful against Youtube, I paid up for a Vimeo Pro account, and boy, was that well spent money. Youtube is nothing but pain and frustration. Vimeo simply works.
Yes, I know about verified Youtube accounts, but even after verifying it, it rejects my video as “too long” after an eight hour upload. It didn’t save it, but had me retry the entire upload again (yes, I’m on a pathetic 2Mbit/s uplink). Vimeo succeeded on first try.
Can’t recommend dumping Youtube and going for Vimeo enough. At least if you value your time and sanity higher than the price. I do.