Contact shadow has box artifacts with backlighting for two sided Subsurface shading model

UE - Graphics Features - Shadows - Nov 14, 2023

See slack channel: [Link Removed] ...

Laser scan import: Importing E57 provides the "Operation failed" error

RC - Editor - Aug 21, 2024

Data: [Link Removed] I also tested other E57 files, and they were possible to import. This one is from RTC360.  [Image Removed] ...

dtNavMeshQuery::findNearestPoly uses hardcoded array size

UE - AI - May 18, 2015

dtNavMeshQuery::findNearestPoly uses hardcoded array size which results in errors when search radius would require using more polygons then hardcoded the 128. ...

Having "Accurate velocities from vertex deformation" enables causes extreme blur on skeletal meshes

UE - Graphics Features - Jan 4, 2016

Having accurate velocities from vertex deformation enabled and a SceneCapture2D in the same project will create blurry skeletal meshes. I am unable to reproduce this with an Nvidia graphics card. T ...

HMD Mirror Mode causes vive to have black preview screen

UE - Platform - XR - Jun 23, 2016

[NickW] SteamVR uses HMD Mirror, but this should fail more gracefully Not sure if this is supported for vive, but it puts the user in a state where they can't undo the command (or change back to a ...

Crash in TMap struct deserializer

UE - Foundation - Core - Sep 20, 2016

When deserializing a TMap<FString, FString> with the JsonStructDeserializer, the Engine crashes. ...

Static mesh does not show after using "Merge Actors" if the mesh is part of a child actor component that has been added to the blueprint

UE - World Creation - Worldbuilding Tools - HLOD - Jan 11, 2016

If a user has two blueprints, one with a static mesh and the other with a child actor component that contains a static mesh and that user uses the merge actors tool the child actor component's stati ...

Viewport has graphical glitch while editing but not in PIE

Tools - Feb 6, 2015

User has a project that the viewport has gotten corrupted. The icons are now no longer camera facing and are facing in the positive y axis. The sun disc and sky are blurred. When PIE everything rend ...

FLightMap2D::Serialize() contains a possible index out of range error.

UE - Graphics Features - Dec 30, 2014

A user pointed out a potential to have an index out of range error in the source code. There are also a few magic numbers scattered around in this function. ...