Q: slide in app not working

Hi flaming250,
 

Thank you for visiting Apple Support Communities.
 

If some features of your app aren't working as expected, I recommend trying the following steps described in If an app you installed unexpectedly quits, stops responding, or won’t open:
 

Restart the app

Close the app and open it again.

Restart your device

Turn your device off and back on.

Check for iOS and app updates

1. Make sure that you're using latest version of iOS.
2. Open the App Store and tap Updates.
3. If updates are available, tap Update All.
4. If asked, enter your Apple ID password. 

You might need a Wi-Fi connection to update some apps.

Delete and reinstall the app

1. Tap and hold the app until it jiggles.
2. Tap the  on the app.
   
3. Press the Home button.
4. Go to the App Store and download the app again.
5. Wait for the app to download, then open it from the Home screen.

Contact the app developer

If you see this issue again, contact the app developer for help:

1. Find the app in the App Store.
2. Tap the app, then tap Reviews.
3. Underneath App Store Customer Reviews, tap App Support. 
   

Sincerely.