Unreal Engine Issues

Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes

When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...

Skylighting on distant objects causes severe flickering with Lumen

Lighting on distant meshes flickers when using Lumen and Skylights. Turning Lumen off and lighting from the skylight is stable. Turning off Lumen screen traces also lowers the amount of flickering ...

Raytraced lights with Source Length > 0 behave incorrectly with Megalights

When Megalights is enabled, light can leak into areas that should be occluded for lights with smallish (5.0) source length and source size. [Image Removed][Image Removed] This was taken with r.Ray ...

Distance Field AO from Moveable Skylight (non-Lumen) invalidates AO incorrectly with a screenspace offset to the right of moving objects

When Global Illumination is set to “None” in the project settings the ambient occlusion does not correctly render shadows for moving objects. This has been observed in versions 5.4 and above. ...

[Interchange] Ensure when re-importing an asset that was import with a blueprint pipeline

The issue is in UInterchangeAssetImportData::ProcessPipelinesCache() The following iteration do not find blueprint pipeline, not sure about python pipeline, it need to be test. TMap<FString, UClas ...

Resetting material instance parameters to default value does not update the appearance of the object that the material is applied to

When a material instance with exposed parameters is applied to a landscape; the parameters set to a new value and then reset to back the default value, the landscape does not respect the new default ...

Anisotropic reflections are not visible in all player views during local multiplayer split screen

When playing in a split screen local multiplayer game the anisotropic reflections differ between players when looking at the same object. It appears as the anisotropic light scatter is not applied ...

Metdata 'ForceAsFunction' does not prevent conversion to event

Quote from the UDN: This is easily fixed with a conditional in bool FBlueprintEditor::ConvertFunctionIfValid(UK2Node_FunctionEntry* FuncEntryNode) which we've done locally, but should probably be ...

Physics Constraint Component loss of accuracy

Physics Constraint Component has lost accuracy between Unreal versions 5.2 and 5.4 (and up). When measuring the exact distance between rigid bodies constrained by a Physics Constraint Component, the ...

Is Head Mounted Display Connected always returns True