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I have reVanced but unfortunately I struggle with getting it to work consistently. Most commonly, the video will play for a minute or so and then buffer endlessly. My Internet research tells me the only way to fix it is to root my device, and I’m honestly not willing to go that far. Luckily I have adblock installed on my phone, so the official app is tolerable.
The other replier is right. I have the same issue every few months and all I have to do is download the recommended YouTube APK & reinstall revanced with the default patches.
Had this issue again 3 days ago and it fixed it. Just be sure you are patching the APK you downloaded and not the original YouTube app. That caused the patching to fail the first few times till I noticed.