The application freezes with no good reason

Target Platforms Mobile
1

Hi Everyone.

I have been working on an issue for several days with no luck and progress. I have a game that runs smoothly on Android and Editor but when launching on iOS , the app freezes and hangs (stops animations and stops responding to input) most of the times.
I am using these packages:

Fabric & Crashlytics

Yandex AppMetrica

I have also attached logs from two bad sessions.
I am using IL2CPP as scripting backend for both Android and iOS.
Unity Version: 5.6.6f2
Api Compability: .Net 2.0 Subset
Test Device: iPhone 5s

Any ideas what might be causing this ?
Thanks

4062046–353782–Untitled2.txt (8.82 KB)
4062046–353785–Untitled3.txt (14.3 KB)

Ios game crashes but on android it works fine
2

in that log3, theres messages like:
Daily Award req: The Internet connection appears to be offline
Failed to get server address:The Internet connection appears to be offline

so maybe it tries to connect somewhere and main thread hangs during that time…?

3

Thanks for reply. They are actually some WWW callbacks. WWW is instantiated and used in a coroutine correctly. So I suspect that they are faulty

4

I found out that the music does not stop. Also the socket thread which is pinging the server is still functioning after the application freezes. So I guess it’s a forever loop in the main thread. I wonder why this does not happen in Android !

Any Suggestions how to find the loop ?