修复关闭UE时的崩溃

[a1967629423]

崩溃日志

``` 2024-06-22 13:57:34.362 UnrealEditor[72618:6608503] [UE] [2024.06.22-05.57.34:362][245]LogExit: Exiting. ================================================================= Native Crash Reporting ================================================================= Got a SIGSEGV while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= ================================================================= Native stacktrace: ================================================================= 0x49b9eba7c - /Volumes/Resource2/VMShare/StoryGame/Plugins/UnrealCSharp/Binaries/Mac/UnrealEditor-UnrealCSharpCore.dylib : mono_dump_native_crash_info 0x49b99f688 - /Volumes/Resource2/VMShare/StoryGame/Plugins/UnrealCSharp/Binaries/Mac/UnrealEditor-UnrealCSharpCore.dylib : mono_handle_native_crash 0x49b91031c - /Volumes/Resource2/VMShare/StoryGame/Plugins/UnrealCSharp/Binaries/Mac/UnrealEditor-UnrealCSharpCore.dylib : mono_sigsegv_signal_handler_debug 0x19ab6f584 - /usr/lib/system/libsystem_platform.dylib : _sigtramp 0x49347a73c - /Volumes/Resource2/VMShare/StoryGame/Plugins/UnrealCSharp/Binaries/Mac/UnrealEditor-Compiler.dylib : _ZN23FCSharpCompilerRunnable3RunEv 0x1025aade0 - /Volumes/Resource2/VMShare/EngineBuild/Engine/Binaries/Mac/UnrealEditor-Core.dylib : _ZN22FRunnableThreadPThread3RunEv 0x1024fce40 - /Volumes/Resource2/VMShare/EngineBuild/Engine/Binaries/Mac/UnrealEditor-Core.dylib : _ZN22FRunnableThreadPThread11_ThreadProcEPv 0x19ab3ef94 - /usr/lib/system/libsystem_pthread.dylib : _pthread_start 0x19ab39d34 - /usr/lib/system/libsystem_pthread.dylib : thread_start ================================================================= External Debugger Dump: ================================================================= ================================================================= Basic Fault Address Reporting ================================================================= Memory around native instruction pointer (0x49347a6c0):0x49347a6b0 02 00 00 14 68 26 42 39 e8 ff ff 35 68 16 40 f9 ....h&B9...5h.@. 0x49347a6c0 08 01 40 f9 e8 02 00 b4 34 01 00 b5 c0 82 04 70 ..@.....4......p 0x49347a6d0 1f 20 03 d5 e1 03 16 aa c2 04 80 52 e3 03 17 aa . .........R.... 0x49347a6e0 11 1b 00 94 40 00 00 34 00 00 3e d4 e0 03 14 aa ....@..4..>..... ```

因为FCSharpCompiler没有让Runnable退出导致Runnable线程访问了析构后的Tasks然后空指针崩溃