iOS crahes: UnityNotificationData

Unity Engine
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1

After updating a Unity project to 2019.4.30f, the iOS build started crashing in the script UnityNotificationData.m. I’ve got a log from Firebase Crashlytics:
Fatal Exception: NSInvalidArgumentException
*** +[NSJSONSerialization dataWithJSONObject: options:error:]: Invalid top-level type in JSON write
___ReadNSDictionary_block_invoke + 227

The most amount of crashes is on iOS 14 and 15.

2

We were able to reproduce the crash with Xcode 13. Reverting to Xcode 12.5.1 resolved the crash.

3

I’ve got the same here, after updating to xcode 13. It happens with the app built with xcode 12 installed on the phone and when I update it from an app built with xcode 13. From fresh install (without app installed before) it works.