Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff
TOTClient_Win64_Shipping!TLockFreeClassAllocator_TLSCache<FGraphEvent,64,0>::Allocate() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Core\Public\Containers\LockFreeFixedSizeAllocator.h:362]
TOTClient_Win64_Shipping!FGraphEvent::CreateGraphEvent() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Core\Private\Async\TaskGraph.cpp:1826]
TOTClient_Win64_Shipping!TGraphTask::CreateTask() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Core\Public\Async\TaskGraphInterfaces.h:841]
TOTClient_Win64_Shipping!FTickFunction::QueueTickFunction() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:2043]
TOTClient_Win64_Shipping!FTickTaskLevel::QueueAllTicks() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:978]
TOTClient_Win64_Shipping!FTickTaskManager::StartFrame() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Engine\Private\TickTaskManager.cpp:1516]
TOTClient_Win64_Shipping!UWorld::Tick() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:1507]
TOTClient_Win64_Shipping!UGameEngine::Tick() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Engine\Private\GameEngine.cpp:1903]
TOTClient_Win64_Shipping!FEngineLoop::Tick() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4995]
TOTClient_Win64_Shipping!GuardedMain() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Launch\Private\Launch.cpp:275]
TOTClient_Win64_Shipping!GuardedMainWrapper() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:144]
TOTClient_Win64_Shipping!LaunchWindowsStartup() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:285]
TOTClient_Win64_Shipping!WinMain() [G:\Perforce4-live\OPP\UnrealEngine4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:332]
TOTClient_Win64_Shipping!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll