Steps to Reproduce
  1. Have a target level that contain Landscape actor.
  2. Have a boot level.
  3. In the boot level blueprint trigger "Open Level (by Name)" to the target level, on "Begin Play" after some delay.
  4. Specify PIE options: 2 number of players, Standalone.
  5. Start the boot level.
Callstack
Assertion failed: PIEInstanceID != INDEX_NONE [File:C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\LazyObjectPtr.cpp] [Line: 22]
 
UnrealEditor_CoreUObject!FLazyObjectPtr::PossiblySerializeObjectGuid() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\LazyObjectPtr.cpp:150]
UnrealEditor_CoreUObject!UObject::Serialize() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:1461]
UnrealEditor_CoreUObject!UObject::Serialize() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:1320]
UnrealEditor_Engine!AActor::Serialize() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\Engine\Private\Actor.cpp:838]
UnrealEditor_Landscape!ALandscapeProxy::Serialize() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\Landscape\Private\Landscape.cpp:2244]
UnrealEditor_CoreUObject!FLinkerLoad::Preload() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp:4388]
UnrealEditor_CoreUObject!EndLoad() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1658]
UnrealEditor_CoreUObject!<lambda_c8710bcd35c9e247c18bb173ed0f9483>::operator()() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1264]
UnrealEditor_CoreUObject!LoadPackageInternal() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1366]
UnrealEditor_CoreUObject!LoadPackage() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1520]
UnrealEditor_CoreUObject!LoadPackage() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1500]
UnrealEditor_Engine!UEngine::LoadMap() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:13983]
UnrealEditor_Engine!UEngine::Browse() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:13412]
UnrealEditor_Engine!UEngine::TickWorldTravel() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp:13610]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1751]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [C:\Jenkins_node\workspace\UnrealEngine\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:474]

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Fixed
ComponentUE - LD & Art - Modeling Tools - Landscape
Affects Versions5.05.0.3
Target Fix5.1
Fix Commit22401227
Main Commit22406958
Release Commit22406951
CreatedJun 16, 2022
ResolvedOct 7, 2022
UpdatedNov 22, 2022