YouTube is widely distributed system, the changes made in one area just can't be spread worldwide instantly.
It can take days, or weeks, in fact I don't really know how it works
So, this link - https://www.youtube.com/watch?v=9jxWUUO4aqk - is now working in my area (in Russia in fact).
I can only do something if (and when) it'll stop to work here.
Entrare
Try the test build from there