Editor crash when press play

Development Programming & Scripting Blueprint
, , , , ,
1

I am getting crash most of the time when pressed play
i use unreal 5.1 i installed it yesterday
this is my crash report

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000

UnrealEditor_Engine!UWorldPartitionLevelStreamingDynamic::IssueLoadRequests() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\WorldPartition\WorldPartitionLevelStreamingDynamic.cpp:395]
UnrealEditor_Engine!UWorldPartitionLevelStreamingDynamic::RequestLevel() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\WorldPartition\WorldPartitionLevelStreamingDynamic.cpp:271]
UnrealEditor_Engine!<lambda_b704a7c45d1ac7686c4ae34f0c8d423f>::operator()() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelStreaming.cpp:829]
UnrealEditor_Engine!ULevelStreaming::UpdateStreamingState() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\LevelStreaming.cpp:1054]
UnrealEditor_Engine!UWorld::UpdateLevelStreaming() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\World.cpp:3907]
UnrealEditor_Engine!UWorld::BlockTillLevelStreamingCompleted() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\World.cpp:3812]
UnrealEditor_Engine!UEngine::BlockTillLevelStreamingCompleted() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:14961]
UnrealEditor_Engine!UGameInstance::StartPlayInEditorGameInstance() [D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\GameInstance.cpp:530]
UnrealEditor_UnrealEd!UEditorEngine::CreateInnerProcessPIEGameInstance() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:3163]
UnrealEditor_UnrealEd!UEditorEngine::OnLoginPIEComplete_Deferred() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1626]
UnrealEditor_UnrealEd!UEditorEngine::CreateNewPlayInEditorInstance() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1889]
UnrealEditor_UnrealEd!UEditorEngine::StartPlayInEditorSession() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:2894]
UnrealEditor_UnrealEd!UEditorEngine::StartQueuedPlaySessionRequestImpl() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1203]
UnrealEditor_UnrealEd!UEditorEngine::StartQueuedPlaySessionRequest() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\PlayLevel.cpp:1106]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1777]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [D:\build++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:517]
UnrealEditor!FEngineLoop::Tick() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:5367]
UnrealEditor!GuardedMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Launch.cpp:202]
UnrealEditor!GuardedMainWrapper() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:107]
UnrealEditor!LaunchWindowsStartup() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:244]
UnrealEditor!WinMain() [D:\build++UE5\Sync\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:282]
UnrealEditor!__scrt_common_main_seh() [D:\a_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
kernel32
ntdll

2

Did you delete any of the assets in the level that should be streaming in during world partition load? For instance from out of the engine in a file explorer?.
You are getting a null pointer regarding streaming in duplicate actors

// Add the duplicated actors to the corresponding cell level
for (auto& ActorPair : ActorContainerDup->Actors)
{
ActorPair.Value->Rename(nullptr, RuntimeLevel, REN_ForceNoResetLoaders);
}
ActorContainerDup->MarkAsGarbage();

I’m guessing ActorPair may be empty so the iteration fails.

Could it be that you had 2 instances of the editor open, saved and corrupted a uasset that now fails to load?