Unreal Engine Issues

Material Preview for Post Process Material Does not display in Material Editor

In the Material editor for when working with a Post Process Material, the material does not appear in the preview window. Regression: This issue does not occur in 4.15.2 Binary Builds ...

Texture Sample 2D Parameter not Working with WPO on Mobile Quality ES3.1

WPO does not accept TextureParameter2D nodes when deployed to High End Mobile. The interesting thing is that all other inputs accept Param2D, so it is not entirely clear why WPO is not working. If ...

Wrong LOD Selected on Skeletal Mesh with Active Scene Capture

Skeletal Meshes with LODs are not able to change LOD levels when a SceneCapture Actor is present. The LOD selected for the Render Target of the Scene Capture is used also for the main viewport. This ...

Composite Textures Normal to Roughness Alpha doesn't generate valid data

BSP Converted to Static Mesh with Multiple Materials Will Only Show Element 0 After Migrating and Changing LOD Settings

Postprocess volume priority bug

ActorPositionWS Material BP node can crash when used in Post Process material

The ActorPositionWS BP node calls GetActorWorldPosition() in HLSL which references Primitive.ActorWorldPosition. But GetActorWorldPosition() is not protected by an #if HAS_PRIMITIVE_UNIFORM_BUFFER ...

Cannot assign default values for UserWidget variable in blueprints

Cannot assign default values for UserWidget variable. This limits their usability in blueprint classes, and really prevents them from being useful in UserStructs, particularly if that user struct is ...

Material Parameter Collection does not correctly render in Widget BP

If a Material Parameter Collection with a Scalar Parameter is used within a material and that material is called within a widget the scalar parameter will render with a 0 value, even when set to ano ...

Light Shaft Occlusion causes exponential height fog to render incorrectly in stereoscopic

Enabling Light Shaft Occlusion causes exponential height fog to render incorrectly at certain viewing angles in stereoscopic. This does not reproduce once light shaft occlusion is turned off on the ...