Building Lighting will Generate Additional Lightmaps after Rotating Lightsource

UE - Graphics Features - Jul 7, 2015

Lightmap sizes seem inconsistent after rotating a light source and rebuilding the lighting. This causes concern about file sizes when packaging the project that is using baked static lighting. The ...

ALT-Drag a non-DBuffer Decal will Crash the Engine

UE - Graphics Features - Jun 11, 2015

When you ALT-Drag a Decal that is not using the Dbuffer settings, the Engine will crash. The issue is not reproducible in Main Promotable-CL-2581018 This is a regression. Worked in 4.7.6, broken ...

ComponentOverlapComponents without reference to a component will compile and crash the editor

UE - Gameplay - Jul 21, 2015

Error Message: Access violation - code c0000005 (first/second chance not available) ComponentOverlapComponent node used in blueprints will cause the editor to crash once you PIE if there is no comp ...

Deleting curve from Pose Asset sets mesh back to default pose

OLD - Anim - Apr 14, 2017

REGRESSION: Yes. Issue occurs in 4.15, but does not occur in 4.14.3 When the user deletes a curve from a pose asset, the mesh will revert to default pose, even if it was showing a pose. The Pose' ...

Docking tabs to the main viewport will hide other viewports that are not docked

UE - Editor - UI Systems - Slate - Mar 3, 2015

If any tabs are undocked from the main viewport and another tab is then docked to the main viewport it will hide any undocked tabs. This only appears to affect tabs that in the Menu > Window with ex ...

Depthfade will not work properly on some Android devices If separate translucency is enabled

UE - Platform - Mobile - Jun 8, 2018

Depthfade will not work properly on some Android devices If separate translucency is enabled. In the case of the attached project, drawing near the material using depthfade is strange. This issue p ...

Procedural / Custom Mesh Components will not render in Custom Depth

UE - Gameplay - Jul 1, 2015

A Custom Mesh Component or Procedural Mesh Component will not render in Custom Depth even though set to Render in Custom Depth is set to true. Also reproduced in Main Promotable-CL-2605107 Bluepri ...

Blender FBXs import wrong number of bones which causes issues with Apex Cloth files

Tools - Jan 6, 2016

First of all, I'm not sure this is an issue with UE4, but I'm not familiar with Blender to rule this out. A user has reported an issue when importing a Rigged mesh from Blender it will add an addi ...

When using Lighting Scenario, loading order will affect how it's applied to the instances

UE - World Creation - Worldbuilding Tools - Foliage - Mar 7, 2019

When using Lighting Scenario, loading order will affect how it's applied to the instances, resulting in corruption if content is loaded after the lighting scenario ...

Packaging for shipping on Android with 'for distribution' checked will cause the build to fail

UE - Platform - Mobile - Mar 5, 2015

When you attempt to package a project for shipping with 'For Distribution' enabled, the build will fail for mobile. ...