Previewing Node in Material Editor Produces Unexpected Output with DX12

UE - Graphics Features - May 16, 2018

Per Licensee: Since we switched to DX12 we started to see strange behavior in material previews. I was able to reproduce the problem in UE 4.19 vanilla as well. We usually have to force recompilin ...

Disabling Occlusion Culling and DBuffer Decals causers crash

UE - Graphics Features - Sep 1, 2017

THere is a crash that occurs when opening a project after the Occlusion Culling and DBuffer decals option are unchecked. There are times where the Unreal Crash reporter catches the crash and display ...

ChildActorComponent (SkeletalMesh) goes into tpose when calling SetChildActorClass

OLD - Anim - Mar 19, 2018

There is an issue occurring where when updating an animation of a child actor by setting the Child actor class, the animation will flash the skeleton in a T-Pose before continuing with the animation ...

Oculus Quest - Loading splash no longer shown

UE - Platform - XR - Nov 12, 2019

Oculus Splash screen image no longer shows on Quest. Unable to reproduce on PC (If you package a project without 'Start in VR' enabled you will be able to see splash until you enable HMD) Conf ...

Multiple Materials not assigned to Mesh on Import

UE - Editor - Content Pipeline - Import and Export - Jan 6, 2017

Not all material elements are created and assigned to the static mesh using multiple materials. With the attached mesh, only the first element is created and the other two are left non-existent. I c ...

Decal creates lighting artifacts on edge of meshes

UE - Graphics Features - Aug 22, 2017

When using deferred decals there are artifacts that are caused by the emissive color of the decal when viewing the decals from a low angle. These artifacts appear as thin lines on the edges of the m ...

HTML5 packages cause an error when being launched onto Chrome 32/64-bit and Firefox 32-bit

UE - Platform - Mobile - Sep 27, 2017

Attempting to launch a project packaged for HTML5 on Google Chrome 32/64-bit or Firefox 32-bit results in an error. According to Nick Shin, this is due to asm.js and does not include in newer versio ...

Spinbox displays values that differ from the value of the delta

UE - Editor - UI Systems - Nov 1, 2017

Spinbox displays values that differ from the value of the delta, when values are displayed for a spinbox their value always reads in the 0.000001 values, instead of listening to the delta. Unsure if ...

HTML5 Black Screen When Launching on Chrome With Mobile HDR Disabled

UE - Platform - Mobile - Nov 2, 2017

When launching the project with Mobile HDR disabled it launches with a black screen. This occurs in 4.16.3, 4.17.2, 4.18, and Main, from my testing. Launching with Mobile HDR enabled works fine exce ...

Reimporting an FBX file via the import button does not make the import options appear

Tools - Nov 28, 2017

Reimporting an FBX file via the import button does not make the import options appear. Instead of allowing the FBX to reimport with new options, the FBX just re-imports. This issue is a regression. ...