I am using 17.2.1 still facing the same issue.
Sagar_Daundkar
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I've also got a similar crash popping up for iOS 14.* devices. The stack track is almost similar. I also try to replicate this on my device but not able to get this crash, but by looking at the firebase crashlytics reports, it is happening to some users. Please update once anyone gets a fix to avoid this crash.