If you’ve recently been experiencing YouTube crashes on your smartphone, Google has a fix in store — though iOS users might need to do a little more than update.
Yesterday, several complaints surfaced on r/YouTube pointing towards issues with YouTube on both Android and iOS devices. Viewers complained of app crashes, video playback errors, and general unresponsiveness. Google confirmed it was aware of these issues in a forum post, recommending users delete and reinstall the app from either the Play Store or App Store while it worked on an update. Now, at least for iOS users, that troubleshooting step has become official guidance.
Källa: YouTube fixes crashing issue on mobile apps, tells iOS users to reinstall