Reproduction steps:
Example: Go to Harvest Festival and collecting the reward for festival.
Repro Rate:
Example: Tried 3 times and crashed 3 times.
Crash log :
LoginId:7c261448458163b71c9a07b2abac17de
EpicAccountId:4bd18044635c4bf29ee6281d2e2d1b68
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff
ProjectCoral_Win64_Shipping!UC_EffectsSubsystem::Apply() [E:\bb39d014adb72997\ue4\ProjectCoral\Source\ProjectCoral\Subsystems\EffectsSubsystem\C_EffectsSubsystem.cpp:36]
ProjectCoral_Win64_Shipping!TBaseFunctorDelegateInstance<void __cdecl(void),FDefaultDelegateUserPolicy,<lambda_ebd261d09b73538e15f941e664464a75> >::Execute() [D:\UnrealEngine\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:831]
ProjectCoral_Win64_Shipping!FTimerManager::Tick() [d:\denny-ue4\engine\source\runtime\engine\private\timermanager.cpp:878]
ProjectCoral_Win64_Shipping!UWorld::Tick() [d:\denny-ue4\engine\source\runtime\engine\private\leveltick.cpp:1563]
ProjectCoral_Win64_Shipping!UGameEngine::Tick() [d:\denny-ue4\engine\source\runtime\engine\private\gameengine.cpp:1823]
ProjectCoral_Win64_Shipping!FEngineLoop::Tick() [d:\denny-ue4\engine\source\runtime\launch\private\launchengineloop.cpp:4923]
ProjectCoral_Win64_Shipping!GuardedMain() [d:\denny-ue4\engine\source\runtime\launch\private\launch.cpp:178]
ProjectCoral_Win64_Shipping!GuardedMainWrapper() [d:\denny-ue4\engine\source\runtime\launch\private\windows\launchwindows.cpp:137]
ProjectCoral_Win64_Shipping!LaunchWindowsStartup() [d:\denny-ue4\engine\source\runtime\launch\private\windows\launchwindows.cpp:273]
ProjectCoral_Win64_Shipping!WinMain() [d:\denny-ue4\engine\source\runtime\launch\private\windows\launchwindows.cpp:320]
ProjectCoral_Win64_Shipping!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll