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 ...

Welcome to the Unreal Editor Tutorial refers to World Outliner Panel as the Scene Outliner Panel

Scene Outliner might be an old name for the World Outliner panel. The hyperlink refers to SceneOutliner, but the heading on the HTML page and the wording on the panel in UE4Editor refer to "World Ou ...

ShooterGame Crashes on Exit on iOS Due to Exhausting Real Time Allowance

When closing ShooterGame on an iOS device, the application crashes due to "exhausting the real time allowance of 5.00 seconds". This issue is NOT a regression for //UE4/Dev-Networking as it is also ...

Post process material UV bug when constraining the aspect ratio

Flickering artifacts are rendered when using Sky Atmosphere Component with Vulkan

Rendering the SkyAtmopshere component using Vulkan with and without Vulkan (SM5) enabled causes artifacts to appear on screen on Windows and Linux.  This was reported and tested in 4.25.1 (CL-135 ...

Playing as Client in the Advanced Vehicle Project reduces maximum speed to 30-40mph and doesn't exceed 3rd gear

Playing as Client in the Advanced Vehicle Project reduces maximum speed to 30-40mph and doesn't exceed 3rd gear. ...

Hide Categories in a blueprint will not affect categories in inline components

This occurs because ObjectPropertyNode.h will only check if a category is hidden for it and its subclasses. It should also be checking the parent's categories if it's an edit inline component. ...

Input Mapping Context entries can get into a corrupted state when swapped with another entry that has a Combo Trigger.

This behaviour was working correctly in version 5.3. This issue happens inside an InputMappingContext DataAsset from the EnhancedInput system. We need at least two mappings entries. One of the entri ...

Global Invalidation causes CommonAnimatedSwitcher to flicker after animation completes

The common animated switcher will currently flicker for one frame when its transition animation completes if global invalidation is enabled. This appears to be caused by a visibility change (HitTest ...

Memory leak in World Settings Window

When the world settings window has been opened but is not visible, the destructor for FLightmapCustomNodeBuilder is never called to remove the editor delegates. Opening a large number of maps has be ...