Following a series of problems with its YouTube app for iPhone, Google has now issued an updated version and recommends users reinstall it.

Update the iOS YouTube app to fix its recent bugs

Update the iOS YouTube app to fix its recent bugs
YouTube does still add new features to its iOS app, such as picture-in-picture, and it continues to promise a native app for Apple Vision Pro. But its main YouTube app for iPhone has being malfunctioning over the last few days.
In response to complaints, Google first issued an advisory suggesting that users should delete and reinstall the app. This was said to be a “temporary workaround” while the problems were being investigated.