Same here. Crashing on dyld: Symbol not found: _vfork when running on iOS 13.7 simulator. Both the Thread Sanitizer and the Address Sanitizer are disabled as per other threads: https://developer.apple.com/forums/thread/695167 https://developer.apple.com/forums/thread/686884 I've the following setup: MacBook Pro with M1 Pro silicon Monterey 12.3.1 Xcode 13.3.1