Atmosphere Sunlight shafts, artifacts, for both cascaded and virtual shadow maps.

UE - Rendering Architecture - Feb 5, 2024

Very large objects casting dynamic shadows on the sky atmosphere can lead to flickering (cascaded shadow maps) or square patterns (virtual shadow maps). ...

Params in material instance disappear when grouping is changed in material with a material layer

UE - Rendering Architecture - Materials - Jan 11, 2025

If there is a texture parameter within a specific material attribute stream in the base material and also within the base material layer, they must have the same parameter group otherwise the parame ...

Dragging Marquee in Orthographic Views results in Selecting Unintended Objects

Tools - Mar 17, 2015

In an orthographic view, dragging the marquee tool to select a group of objects will often result in other objects being selected outside the selection area. ...

Game does not have focus at launch

Tools - Mar 31, 2015

When running a game in PIE, standalone, or package the game does not gain initial focus. User must click inside the game window to enable input. ...

Static mesh created from bsp will not properly duplicate if original copy of mesh in viewport is used

UE - LD & Modeling - Modeling Tools - BSP - Jun 1, 2015

If a bsp is turned into a static mesh and then the original mesh in the level is duplicated, it will register as duplicated in the world outliner but the mesh will not appear until re-assigned in th ...

sRGB setting results in difference in Sprite Look compared to Texture Editor

UE - Graphics Features - Jan 16, 2015

User is reporting an issue with the preview of a Sprite and its rendering in game differing from the Texture Editor based on sRGB setting. With sRGB = True: [Link Removed] With sRGB = False: [Li ...

Merge Actor tool can no longer merge just materials for an actor

UE - Gameplay - Jul 5, 2016

In 4.11 when you selected an actor with multiple material elements with the merge actors tool open you had the option to merge the material elements into a single one. This option is no longer valid ...

Memory Leak occurring when making procedural content with the Construction Script

UE - Gameplay - Blueprint - Nov 24, 2015

When modifying an object that makes changes using the construction script seems to cause a memory leak. The memory that is used seems to never be freed up. ...

The Nativize Blueprint Assets option causes C++ collision components to ignore their extents set in a blueprint

UE - Gameplay - Blueprint Runtime - Jan 11, 2017

Using the Nativize Blueprint Assets option can cause the extents of a collision component defined in code and inherited by blueprints to use its default values in a packaged build instead of the ext ...

Setting size of GameViewportClient gives different results on Android than in Editor

UE - Platform - Mobile - Feb 9, 2017

Setting size of GameViewportClient gives different results on Android than in Editor OpenGL ES renders with the viewport origin in the bottom left, so that's potentially related to the problem. A ...