I have crash while playing in PIE. The c++ code compiles fine - I have browsed blueprints and did not find any major issues.
Other thing - how should I read this bug trace? I can see that in my SGameMode something wrong is with starting game. It points to line 72 but that is calling super method of StartMatch.
Access violation - code c0000005 (first/second chance not available)
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_SurvivalGame!ASGameMode::StartMatch() [c:\users\wisnia\documents\survivalproject\source\survivalgame\private\world\sgamemode.cpp:72]
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: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