I started a chat with a YouTube agent. They said to turn off autoplay. They also said no one had reported this issue, which seemed false from what is said in this thread. This is what they recommended:
“Please try the following steps:
- Delete the app's cache.
- Make sure your device uses the latest version of the YouTube app.
- Uninstall and reinstall the YouTube app. Touch and hold the YouTube app icon on the home screen until it starts shaking. Tap the X, which will uninstall the app from your phone. Then, reinstall the app from the App Store. Doing this will delete your downloaded videos from the app. Don't worry. You can always redownload them. This step can help clear any glitches in the app that might be causing this issue.
- As a final step, try restarting your device by turning it off, then back on.
These steps often do the trick, but if you’re still having issues after trying them, the best way to let the team that design the features that you love is by sending them feedback from the app. Here's how:
- Tap your account icon in the top right corner of the YouTube app
- Tap Help & feedback > Send feedback
- Enter a short description of the issue and tap the arrow icon in the top right corner to submit”