Volumetric fog black and not updating with real-time capture skylight

UE - Rendering Architecture - Oct 20, 2023

It looks like the skylight is not updating the CPU side SH values when Real Time Capture is enabled, and thus old/empty values are sent to the fog. ...

Bright Flickering or Black Squares with Rectangle Lights Intersecting Meshes

UE - Graphics Features - May 31, 2024

Rect Lights that intersect geometry can produce NaN pixels in SceneColor, which will affect bloom, FXAA, and other future passes. This can lead to large visible artifacts. The NaN values are produc ...

Custom buffer visualization material instance problem

UE - Rendering Architecture - Materials - Jun 28, 2024

Material Instances used in Custom Buffer Visualizations do not respect parameter overrides, and use the parent material's values. Also tested on UE5-Main, CL: 34543023 ...

Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.

UE - Graphics Tools - Terrain - Jul 19, 2024

It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...

'prefix parameter names' checkbox in a material function's settings does nothing.

UE - Rendering Architecture - Materials - Nov 14, 2024

Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...

Reimporting mesh will wipe any collisions that were setup using the Static Mesh Editor

Tools - Jun 12, 2015

When Reimporting a mesh the collision that is created using the methods in the Static Mesh Editor will be wiped if there was not previously setup UCX custom collision. ...

HideCategories() property is not held when the editor is closed

UE - Gameplay - Blueprint - Mar 20, 2015

Setting a UCLASS() macro with the "HideCategories" property will updated after a hot reload but after closing /reopening the editor the hidden category will be visible again. ...

Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser

UE - AI - Nov 2, 2015

Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.10 Preview 3 binary ...

Graphics failure when pasting code for a BP node into Color Picker Hex field

Tools - Sep 11, 2015

Graphics failure when pasting code for a BP node into Color Picker Hex field Does not occur in 4.8.3 ...

Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone

UE - Gameplay - Blueprint - May 15, 2015

Getting a TextBlock variable from the Return Value of a Create Widget node inside a Player Controller will cancel all the nodes before it in Standalone. Does not occur in other PIE modes, and does n ...