Not only our app, but also other company/individual apps have the same symptoms. If we repeat the above process, sometimes the symptoms keep coming back and sometimes they don't. Most of them happen after a few iterations.

Oh you have similar symptoms!! I also have the same symptoms on iphone 12 promex ios 15 There was no such symptom on iphone 8s plus iOS 15.1 beta. It doesn't go away even after rebooting the device.

It still happens in version 15.0.1 as well. It has not been modified. It happens with all apps sold on the App Store. The model I am using is iPhone 12 Pro Max and the iOS version is 15.0.1.

I also tried operatingSystemVersion . operatingSystemVersion is also returned as iOS 15.0.

No, it's not English, it's another language.

iOS 15.3.1 version iPhone or iPad still has that phenomenon. Couldn't find a solution.

We are not using CoreData and the above happens.

We've been working on putting 20000 ViewControllers into an Array. We've seen that putting 20000 into an Array using append() doesn't take much time. However, it took a long time when I called removeAll() to delete the previously inserted 20000. It took about 15-20 seconds between calling removeAll and completing all append . We've even seen that using [] instead of removeAll() is time consuming which doesn't make much difference.

It seems to be caused by the AdMob library, so I posted the issue to the AdMob community. If I get a solution answer or find a solution, I'll upload it.

I've replied back below. please note

Thank you for answer. When testing using StoreKit, closing the app in the background actually causes the app to crash. However, since it occurs in the background, it may have little effect when users use the app. But if we want to reduce those crash logs, we should use extenstion on devices after iOS 15.7.

Added code on TTS generation and exit.

I'm trying to add this code to my app in the next update, but the crash still comes? @available(iOS, introduced: 15.7, obsoleted: 16.0) @objc extension SKStoreProductViewController { func sceneDisconnected(_ arg: AnyObject) { } func appWillTerminate() { } }

We shared the sample code compressed file as a Google Drive link. : https://drive.google.com/file/d/142_ymW1CGnOwIcYU7SWnR_3JAhxUPQYG/view?usp=sharing

Please reply after checking the file. (The cause or if it can be improved in the next iOS update) Be sure to test on an iPhone 14 Pro or iPhone 14 Pro Max. (Simulation is not recommended.)