The translation button in the top search box and the LR button on the bottom left are not visible on YouTube.

The translation button in the top search box and the LR button on the bottom left are not visible on YouTube.
However, if you log out of YouTube, it will be displayed normally.
Why?
yt_login

yt_logout

It’s been back to normal since a few days ago. It looks like the LR update is probably the reason why it’s working normally. That’s good.