# Bug report The code could be compiled successfully on a macos , godot-4-stable. But crashed when executed it. The error info follows. ``` Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Application Specific Information: abort() called terminating with uncaught exception of type std::__1::system_error: mutex lock failed: Invalid argument ``` Any comments?