We are experiencing unexpected crashes when our IOS mobile client application resumes from background. The crash happens quite rare but still it is not ideal from user experience point of view. We could pin point the cause of crashes and we wanted to inform you so that it can be fixed. It seems the reason of crashes is calling some UIApplication methods from background threads (mostly applicationState). You can see exact class and method in the screenshots. If there are similar uses in other parts in the library, they may also need to be fixed. Suggested solution is calling UIApplication methods from main thread instead of background threads.

Hello Mehodesign,

Thanks for finding this. Our technical team will investigate provided info and solve the problem.

Best regards,
Dmitry

This should be fixed in Client SDK release 3.4 and later.