Linker Object (Unresolved Export) Crash on Standalone Exit

Crash when exiting standalone. "we have an export that is never getting resolved, this is the export that is causing the mislink error when shutting down the game"

Please see UDN post for more information.

Also occurs in Main 4247867

Example project:

[Link Removed]

Unsure of exact steps to recreate.

1. Run example project in standalone
2. Project will automatically quit after 1 second and show crash

Fatal error: [Link Removed] [Line: 4318] Linker object ConcussPP_C /Game/ThirdPersonCPP/Blueprints/Concuss.ConcussPP_C_0 mislinked!

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_CoreUObject!FLinkerLoad::DetachExport() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:4318]
UE4Editor_CoreUObject!FLinkerLoad::Detach() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:4351]
UE4Editor_CoreUObject!UPackage::BeginDestroy() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\package.cpp:224]
UE4Editor_CoreUObject!UObject::ConditionalBeginDestroy() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:884]
UE4Editor_CoreUObject!StaticExit() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:4204]
UE4Editor_CoreUObject!TBaseStaticDelegateInstance<void __cdecl(void)>::ExecuteIfSafe() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:788]
UE4Editor!TBaseMulticastDelegate<void>::Broadcast() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:937]
UE4Editor!FEngineLoop::AppPreExit() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:4052]
UE4Editor!FEngineLoop::Exit() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2885]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launch.cpp:177]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:144]
UE4Editor!WinMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:223]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
kernel32
ntdll