Crash during save level and successive load level

UE - LD & Modeling - Terrain - Landscape - Apr 4, 2018

Changing the Max LODLevel on a landscape causes a crash in content examples. ...

Apex Destruction - Destructible Mesh disappears after Fracture

UE - Simulation - Physics - Destruction - Jan 3, 2020

Fracturing a mesh with Apex Destruction in 4.24.1 (CL-10757647) causes the mesh to disappear after clicking Fracture. This behavior was not present in 4.23.1 (CL-9631420). Unable to confirm this in ...

USD Alembic - Groom cache shape changed from MAYA after imported into UE.

UE - Editor - Content Pipeline - USD - Mar 28, 2022

Landscape overdraw bug

UE - Graphics Tools - Terrain - Feb 26, 2026

When Landscape GPU Culling is operational, patches of Landscape will have heavy overdraw. This requires Nanite and Lumen to be disabled - the test project is set up with this by default. This quad ...

Potential wrong branch condition about DFAO and Niagara GPU SDF Collision

UE - Niagara - Mar 6, 2026

Particles using Distance Field collision can have their collision controlled by "r.DistanceFieldAO". It appears that the condition in "ShouldPrepareGlobalDistanceField(...)" from DistanceFieldAmbie ...

If Visible is off in actor details by default, Visibility track in Sequencer doesn't work in game

UE - Anim - Sequencer - Sep 8, 2016

If Visible is off in actor details by default, Visibility track in Sequencer doesn't work in game. It appears to work when you hit play in the Sequencer Editor, but doesn't work in game. ...

Crash triggering SetScalarParameterValueOnMaterial node

UE - Gameplay - Nov 30, 2015

Crash occurs when the user triggers the SetScalarParameterValueOnMaterial function node. ...

GetOverlappingActors/Components ignore physics actors spawned in with zero movement

OLD - Anim - May 15, 2017

GetOverlappingActors/Components ignore physics actors spawned in with zero movement. This only effects actors where the root is the DefaultSceneRoot and not the Static Mesh Component. User Descript ...