Could be related to this issue.
I can corroborate that when I turn off my custom DNS it works swimmingly, until YouTube figured out to block my IP again.
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Could be related to this issue.
I can corroborate that when I turn off my custom DNS it works swimmingly, until YouTube figured out to block my IP again.
GrayJay is what I usually use. It's working currently.
I've been having this for a fair few days now. I don't have the same issue with NewPipe so have been using that till this gets fixed. It's been reported here #2761
I don't use PipePipe, but FreeTube. Since YouTube updated their system to use SABR (I don't even know what exactly that is, I just know it causes issues for us), I get sometimes a reload loop for some videos. In some cases my IP is blocked. Only a VPN helps in those cases. This plagues me / us for weeks and months. I'm surprised you didn't encounter this issue earlier; probably because the developers of the app you are using did a good job.