Vertex Interpolate Node Doesn't Work with Lightmass

UE - Graphics Features - Lumen - Aug 8, 2018

The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...

[CrashReport] UE4Editor_Kismet!FBlueprintGlobalOptionsDetails::CanDeprecateBlueprint() [blueprintdetailscustomization.cpp:5127]

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.15 and 4.16, affecting over 200 unique users so far. User Descriptionsattempt to import bp from example Source Context 5124 { 5125 // I ...

Android Volume Up/Down input events no longer functioning

UE - Platform - Mobile - Aug 23, 2018

Android Volume input events have stopped triggering in 4.20 Tested on Pixel XL (8.0) Also occurring in Main at CL 4309299 ...

Difference in Shader Complexity view mode between Static Mesh and Painted Foliage Actors after Enabling 'Dbuffer Decals' in Project Settings

UE - Graphics Features - Oct 19, 2016

The 'Shader Complexity' view mode is rendering differently between regular Static Meshes and Painted Foliage instances after enabling 'DBuffer Decals' The user is reporting that this does not seem ...

Volumetric Light Fog Leak through objects

UE - Graphics Features - Dec 31, 2018

Any environment with volumetric fog enabled will have a light leak which appears through objects.  Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

Display error when removing foliage instances in standalone or built game

UE - World Creation - Worldbuilding Tools - Foliage - Feb 12, 2018

This bug has different behavior depending on the engine version. When tested in 4.19 Preview 4, the 1M_Cube meshes do not render in the standalone/built game.   In 4.20, the meshes render but some m ...

Sockets Duplicate When Mesh is Reimported

Tools - Dec 21, 2017

When a static mesh that already has sockets created in it's original third party program is reimported into the editor, it's sockets are duplicated. Going from 10 to 20 on reimport.  ...

Can't import FBX animations

Tools - Jul 23, 2018

When importing Animation FBX files into 4.20 the following error is received: "Failure to Import - Mesh contains root bone as root but animation doesn't contain the root track." The importing proce ...

Sequencer in packaged VR project does not appear to work when using sequence player on begin play

UE - Anim - Sequencer - Sep 27, 2016

Sequencer in packaged VR project does not appear to work when using sequence player on begin play. The HMD no longer appears to be affected by sequencer after the project has been packaged out ...

Rotation of a constraint is not taken into account for limited range movement

UE - Simulation - Physics - Apr 9, 2019

Rotating a constraint does not update its range of motion based off of angular limits. The user who reported this also mentioned that migrated constraints do not see this issue (eg: migrating a phys ...