Unreal Engine Issues and Bug Tracker (UE-212112)

Description

Using landscape sculpting tools, then executing Undo with Ctrl+Z

Steps to Reproduce

Use the Landscape sculpting tools
Spam undo with Ctrl + Z.

Callstack

Assertion failed: !PhysicalMaterialTask.IsValid() [\Engine\Source\Runtime\Landscape\Private\LandscapeEdit.cpp] [Line: 1867]

ULandscapeComponent::UpdatePhysicalMaterialTasks() LandscapeEdit.cpp:1868
ALandscapeProxy::UpdatePhysicalMaterialTasks(bool) Landscape.cpp:5865
ULandscapeSubsystem::Tick(float) LandscapeSubsystem.cpp:333
FTickableGameObject::TickObjects(UWorld *,int,bool,float) Tickable.cpp:150
UWorld::Tick(ELevelTick,float) LevelTick.cpp:1584
UEditorEngine::Tick(float,bool) EditorEngine.cpp:1713
UUnrealEdEngine::Tick(float,bool) UnrealEdEngine.cpp:528
ULyraEditorEngine::Tick(float,bool) LyraEditorEngine.cpp:64
FEngineLoop::Tick() LaunchEngineLoop.cpp:5819

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Unresolved

Component	UE - LD & Modeling - Terrain - Landscape
Target Fix	5.5

Created	Apr 11, 2024
Updated	Apr 16, 2024

UE-212112

Crash in ULandscapeComponent::UpdatePhysicalMaterialTask() during landscape sculpting undo operations

Crash in ULandscapeComponent::UpdatePhysicalMaterialTask() during landscape sculpting undo operations

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