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App crashes on launch on iOS 26.3.1 beta — withCheckedThrowingContinuation in Swift async wrapper #331

@BenSapir1

Description

@BenSapir1

Library version: 13.3.1
react-native-nitro-modules version: 0.35.2
React Native version: 0.81.5
Expo SDK: 53
Device: iPhone 17 Pro (iPhone17,1)
OS: iPhone OS 26.3.1 (23D771330a) — beta

What happens:
App crashes on launch in TestFlight. Crash happens ~200ms after launch on thread
com.apple.root.user-initiated-qos.cooperative inside Swift async/await wrappers.

Stack trace:

  • Thread 3 (faulting): optivizeumobile + withCheckedThrowingContinuation crashing
  • Thread 4 (running): com.apple.HealthKit.HKHealthStoreImplementation.connection — HealthKit is loading
  • Exception: EXC_BREAKPOINT / SIGTRAP

Attaching full .ips crash log below.

optivizeumobile-crash-2026-03-21.json

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