@TeamYouTube My YouTube Premium seems to not be working. I am unable to play videos in PIP on my phone, nor lock my phone and have videos keep playing, nor close the app and have videos keep playing. I've restarted the app & my phone; this is the only reason I pay 4 this service.
Check out this resource when the background play feature isn't working on your mobile device: https://yt.be/help/d6uk & if you still need help, you can contact our Paid Product Support team here: https://yt.be/help/purchases Hope this helps!