My app is exhibiting strange behavior [iOS]

Sometimes apps can exhibit unusual behavior caused by corrupted resources on your device. Those unusual behaviors may include distorted-sounding audio, interrupted audio, missing background sounds, or unexpected behavior in the user interface.

To fix most issues, please follow this procedure:
  1. Delete the app.
  2. Reboot the device by holding down the power button and the home button at the same time until you see the Apple logo, then release. (On an iPhone 7 or 7 Plus, hold the power button and the volume down button instead.) It's important that you do not release the buttons until you see the Apple logo.
  3. Reinstall the app.
  4. If the app is one of our free apps and you previously purchased the in-app upgrade, after reinstalling, go to the Settings tab in the app and tap Restore In-App Purchase.

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