I have an existing game with two cameras. I’m trying to add a VR camera based on the following guide:
https://docs.unrealengine.com/en-us/Platforms/Oculus/HowTo/SeatedCamera
But when I add the VR camera and attempt to run in VR mode, UE4 crashes (see appended error).
Any clues on what this could be? Or on how to debug this?
…
Assertion failed: Index >= 0 [File:D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject/UObjectArray.h] [Line: 445]
UE4Editor_Core!FDebug::AssertFailed() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2189]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:985]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:887]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:985]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4551]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1345]
UE4Editor_Engine!AActor::ProcessEvent() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:687]
UE4Editor_Engine!AActor::BeginPlay() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:3140]
UE4Editor_Engine!AActor::DispatchBeginPlay() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:3107]
UE4Editor_Engine!AWorldSettings::NotifyBeginPlay() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\worldsettings.cpp:189]
UE4Editor_Engine!AGameMode::HandleMatchHasStarted() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:234]
UE4Editor_Engine!AGameMode::SetMatchState() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:350]
UE4Editor_Engine!AGameMode::StartMatch() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\gamemode.cpp:211]
UE4Editor_Engine!UWorld::BeginPlay() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\world.cpp:3536]
UE4Editor_Engine!UGameInstance::StartPlayInEditorGameInstance() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\gameinstance.cpp:355]
UE4Editor_UnrealEd!UEditorEngine::CreatePIEGameInstance() [d:\build++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:3274]
UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() [d:\build++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:2410]
UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() [d:\build++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\playlevel.cpp:1271]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:1581]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:401]
UE4Editor!FEngineLoop::Tick() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3339]
UE4Editor!GuardedMain() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
UE4Editor!WinMain() [d:\build++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
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