Unexpected application crashes

Hello. I have an app published on the AppStore. I am developing the app with .NET MAUI. Last week, some app users reported crashes on the splash screen and mentioned that they could never open the app. There is no common feature among the users experiencing crashes. They have different device models and different operating system versions. I have never been able to replicate this issue on about 10 devices around me.

There are screen records of the crash. However, there are no logs of these crashes in either the crash reports on Xcode or the Crashes section on App Store Connect.

I included one of the users experiencing the crash in External Testing on TestFlight. I removed the OneSignal SDK, which I suspected to be the source of the crash, from the project and created a new version. The user installed this version, but the crashes continued. Now, in the Testers section of the External Testing group, I see that the user has started 2 sessions and experienced 2 crashes. However, there is still no log in the Feedback > Crashes section.

I don't know what more I can do without any logs. I could try using external services like Raygun to obtain logs, but since the app crashes before it even opens, I'm not sure if that would work either. Do you have any other suggestions?

Unexpected application crashes
 
 
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