FJsonPointer does not work and may lead to undefined behavior

FJsonPointer::ParsePath passes a pointer to a single TCHAR as FString::ParseIntoArray's pchDelim parameter, which is supposed to be a pointer to a null-terminated string. ...

Error when zooming out in orthographic view in 5.4

UE - Editor - Jul 29, 2024

In 5.4: zooming out far with the mouse wheel after setting the editor viewport to orthgraphic view triggers an ensure: ensure(InOrthoZoom >= MIN_ORTHOZOOM && InOrthoZoom <= MAX_ORTHOZOOM); Th ...

StaticMesh reimport: socket List not refresh if the count is the same

UE - Editor - Content Pipeline - Import and Export - Jul 29, 2024

Interchange Scene: actor creation is not optimize

UE - Editor - Content Pipeline - Import and Export - Jul 29, 2024

UInterchangeGenericLevelPipeline::ExecuteSceneNodePreImport is iterating all nodes for every actors it create. We need to cache the result. ...

Memory leak when Lumen is disabled but r.MeshCardRepresentation=1

UE - Graphics Features - Lumen - Jul 29, 2024

When Lumen is disabled, but the cvar "r.MeshCardRepresentation" is set to 1, Lumen will continuously enqueue object removal from the Lumen Scene, without ever emptying the array of primitives to rem ...

Incorrect Lighting With Exponential Height Fog And Light Function Atlas

UE - Graphics Features - Jul 29, 2024

There currently is a mismatch occurring when light function atlases are used in conjunction with exponential height fog. When the flag r.VolumetricFog.UsesLightFunctionAtlas is enabled, light shafts ...

Sequencer- FComponentMaterialInfo isn't exposed to Blueprint or script, leaving script users having to call deprecated paths

UE - Anim - Sequencer - Jul 26, 2024

The ComponentMaterialTrack recently got upgraded to be able to animate parameters on different types of materials. This meant using an FComponentMaterialInfo to describe which material was being ani ...

Copy and paste from one sequencer to another does not work correctly

UE - Anim - Sequencer - Jul 26, 2024

Copy and paste from one sequencer to another does not work as expected. Let say there is a certain folder structure like this;[Link Removed] Then you press Ctrl+A then Ctrl+C for copying and past ...

UI Flickers in Packaged Movie Render Queue builds

UE - Anim - Sequencer - MRQ - Jul 26, 2024

Visual Logger bForceUniqueNames does not result in unique names (regression)

UE - Gameplay - Jul 25, 2024

Just a regression introduced with the VisLogger changes. ...