Go to Youtube.com. Sign-in. From the page that shows your subscriptions, select a video. That takes you to the page for that given video, and a message like this is shown: " An error occurred. Please try again later. (Playback ID: kq6xsG_1WJoc7xK_)
Reload the page, and it works fine.
Brave Version( 1.4.95`):
Windows 10 w/all udpates applied, core i7, 16gb ram, Intel HD on-die graphics, 1tb hdd, Just a typical HP business laptop.