Tried reproducing a crash similar to this: https://console.firebase.google.com/u/0/project/mindtickle-ce5f8/crashlytics/app/ios:com.mindtickle/issues/45e27e868b1d3e842d2534c86d4f88d5?time=last-seven-days&sessionEventKey=dfce5efd5fd043b7bd0c977954adfe40_1752469140874212067
Check ViewController.swift and Atomic.swift
concurrent reads with mutation without barrier was causing the crash.
Running the project as it is will crash the app at some concurrent Set.contains(_:) operation, .barrier flag while mutating fixes the problem.