Update: This is now resolved! If you're still seeing a "Server Error 400" message on Android, please update the YouTube app to the latest version and open the app again. Thanks so much for hanging in there with us ❤️🩹
goo.gle/4CckJqO
If you're seeing a "Server Error 400" message when trying to access YouTube today, we're on it! 🛠️
Our teams are aware of the issue and are actively investigating. We'll share more updates here as we get them: goo.gle/4BEmZqp