A. 1. Close the app and reopen it to see if the issue resolves itself. 2. Check for updates to the app in the App Store, as this may be a known issue that has been addressed in a newer version.

B. 1. Try resetting the app settings to default if the option is available. 2. If the problem persists, consider clearing the app's cache by offloading it in Settings > General > iPhone Storage.