BLUI causes crash when used with AsyncLoading

[KieranChandler]

When using AsyncLoading such as when using the AsyncLoadingScreen plugin, the engine crashes when trying to asynchronously load content for the BLUI plugin during the loading screen. I have figured out the issue, its due to invalid values in the .uplugin and I will raise a PR for this

The following is a call stack from the crash:

Fatal error: [File:B:/essentialue4/Engine/Source/Runtime/CoreUObject/Private/Serialization/AsyncLoading.cpp] [Line: 3159] Could not find SuperStruct ReceiveBeginPlay to create ReceiveBeginPlay

MortarMen_Win64_DebugGame!FAsyncPackage::EventDrivenSerializeExport() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:3159]
MortarMen_Win64_DebugGame!FAsyncPackage::ProcessImportsAndExports_Event() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:3539]
MortarMen_Win64_DebugGame!<lambda_1027454e387f3a3c5657b568269c2148>::operator()() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:2305]
MortarMen_Win64_DebugGame!FAsyncLoadingThread::ProcessAsyncLoading() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:4070]
MortarMen_Win64_DebugGame!FAsyncLoadingThread::TickAsyncThread() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:4857]
MortarMen_Win64_DebugGame!FAsyncLoadingThread::TickAsyncLoading() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:4556]
MortarMen_Win64_DebugGame!FAsyncLoadingThread::FlushLoading() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp:7023]
MortarMen_Win64_DebugGame!FlushAsyncLoading() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncPackageLoader.cpp:645]
MortarMen_Win64_DebugGame!LoadPackageInternal() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1147]
MortarMen_Win64_DebugGame!LoadPackage() [B:\essentialue4\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1469]
MortarMen_Win64_DebugGame!UEngine::LoadMap() [B:\essentialue4\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:13031]
MortarMen_Win64_DebugGame!UEngine::Browse() [B:\essentialue4\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:12463]
MortarMen_Win64_DebugGame!UGameInstance::StartGameInstance() [B:\essentialue4\Engine\Source\Runtime\Engine\Private\GameInstance.cpp:584]
MortarMen_Win64_DebugGame!FEngineLoop::Init() [B:\essentialue4\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4055]
MortarMen_Win64_DebugGame!GuardedMain() [B:\essentialue4\Engine\Source\Runtime\Launch\Private\Launch.cpp:160]
MortarMen_Win64_DebugGame!GuardedMainWrapper() [B:\essentialue4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
MortarMen_Win64_DebugGame!LaunchWindowsStartup() [B:\essentialue4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:273]
MortarMen_Win64_DebugGame!WinMain() [B:\essentialue4\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:321]
MortarMen_Win64_DebugGame!__scrt_common_main_seh() [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll