I have always used uBlock Origin (Win10/Chrome) with great success, but about a month ago I started getting the "You can only play 3 videos..." notification.
A quick search turned up a script from Reddit (now gone) for Tampermonkey, which has been working flawlessly until just today
.
Interestingly, I still have my music from last week playing at work, and it doesn't have an issue, so I'm fine until I have to restart.
Waiting for the big brains on Reddit to come up with something new (until it's taken down).
Reddit Thread:
https://www.reddit.com/r/youtube/com...ked_perfectly/