iOS App Doesn't Open First Touch - ios

Whenever I click on my app's icon, it animated the user interaction but doesn't open the app.
This only happens sometimes after I navigate to other apps can come back.

Figure it out.
It was because the app was from an Xcode build and not from the App Store.

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Close Settings App Programmatically on iPhone using Swift

How would I close the Settings App programatically and navigate back to the original app that open the Settings App? Thanks
You cannot specifically navigate back to the app that opened Settings.app, or any other app for that matter.
You can only navigate to specific apps using their URL schemes, if they have defined one.

iOS app showing old app icon even after change

I am changing app icon for my app and had below issue.
Even though I changed app icon still at times when I quit the app the animation shows old app icon and then transforms to new app icon. And also in Siri suggestion I still see old app icon. Will this be there even after app release or is it just a issue with running through Xcode. Is there anyway I can remove this app icon caching? I tried deleting old app and restarting device and then installing new app that solves this issue, but actual users won’t be doing this. Can anyone suggest any solution for this issue?
I am using Xcode 11 and I am on iOS 13.
Clean build and delete derived data, and that should take care of your issue. But users downloading app from App Store will not experience this issue.
1) Product > Clean build folder
2) XCode > Preferences > Locations > click on arrow for derived data
The iOS Springboard caches the app icon. So as soon as you change the app icon it won’t reflect in Siri suggestions and few app quit animation may still show old app icon. Gradually as user starts using the app with new logo and when iOS springboard caches the app icon again it will start showing the new app icon. So, don’t worry gradually all your users will start seeing the new app icon.

IOS app is greyed out after pressing home

I have an IOS swift app that I'm working on that seems to run fine. When I press the home button to exit it while running, the app icon turns grey and I can't go back into the app nor delete it. The only way tot go back is if I double tap the home button and find the app under all the running apps. What is causing this issue?
I was trying to change the app name and maybe messed up some setting because even earlier iteration of the app doesn't work so it's not a bug in code.

iOS App shuts down when notification center and recently used app list are opened

My iOS app simply shuts down when I open notification center while the app is visible and in focus. Same thing happens if I double click the home button to show the recently used apps list.
This would seem to be an application lifecycle issue, but no errors are reported in Xcode.
How should I go about debugging this problem?

Default launch image is shown when leaving app and going back via URL schemes

When I trigger a Facebook share in my app (URL scheme that switches to the Facebook app, and then back again when it's done through another URL scheme associated with my app), I always see the default launch image for a second before I get the UI back.
If I leave the app by pressing the home button and going back I don't get the default launch image. Nor do I get it if I leave the app, open another app and then go back.
Tested on an iPhone 5 with iOS 8. Is this a bug in iOS 8 perhaps? Anybody else encounter this?
EDIT: Oh, and no UIApplicationExitsOnSuspend in the plist, and the app is compiled against iOS 7.

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