Comment by adrianmsmith

It's better now, the support page opens in a new tab, so you can close the tab and go back and click on the (right place of the) video thumbnail.

It used to open that page in the same tab you were in. So you press the browser's back button, you get back to the YouTube home page, but now it's shown you different recommendations and the video you wanted to click on is gone, and you've no idea what it was called...