Picture in Picture is not working

[barkar_sergey]

I want to use PiP on Youtube videos, but PiP is not working.
The audio plays back, but the PiP window remains black (controllers, too).
This is true for other video sites as well.

Currently, I have tried
- Secret mode
- New user (without any Extensions)
- Reinstall of the browser, Windows
But PiP still not working.

When I use Google Chrome (official version), PiP is working.