Why did my YouTube playlist disappear after iOS 17.4.1 update?

This is why we told you to contact Google:

https://9to5google.com/2024/04/16/youtube-subscriptions-outage/

YouTube subscriptions and YouTube TV library are broken in partial outage

Contact Google Support for issues with their application, services or websites.

Why did you start an entirely new thread with the very same question several of us have provided answers to? Did you honestly think you'd get different answers?

Youtube playlists disappeared…why? - Apple Community

I need YouTube