Sohu Tech Products

Feb 3, 2021 · Mobile Development

Debugging NSInvocation Out‑of‑Bounds Crash After iOS 13.3 Upgrade

This article analyzes a crash caused by NSInvocation argument out‑of‑bounds on iOS 13.3+, explains the underlying runtime changes, demonstrates how to reproduce the issue with a timer‑triggered message forwarding scenario, and provides a fix by correcting the method signature.