This is happening on all iOS 15 apps. I am running on an iPhone 12 mini (iOS 15.4.1) Open any app Close the app and quickly reopen. This will cause the app to crash if you do it fast enough. It seems to work as expected if you wait at least one second before reopening. To resolve this issue close ALL background apps so the "recent apps" are empty. When you do this, the problem in step 2 does not happen. To "re-activate" the crash, open 5 to 10 apps and put them in the background. All apps will then continue to crash when re-opening. All of our crash reports have been for devices running iOS 15. We believe some of the packages we use are having trouble initializing correctly when the app state changes. None of our crashes have been on iOS 14. https://drive.google.com/file/d/1Gg00d9N1_N94yxkHpyfVAqiCEiTX9c1M/view?usp=sharing