Unreal Engine Issues
Unreal Engine Issues
Importing animation onto a camera in Sequencer adds extra keys to the scale and rotation attributes
UE - Anim - Sequencer - Oct 22, 2019When importing non-baked animation (i.e. not keyed on every frame) onto a camera in sequencer, Unreal adds extra keys to the rotation and scale attributes as if it is baking the rotation and scale a ...
InstancedStaticMesh displaying corrupt lightmap data
UE - Graphics Features - May 17, 2021I think I narrowed this issue down to bad UV coordinates being interpreted during the BasePassVertexShader execution applied to instancing. At this line in VertexFactoryGetInterpolantsVSToPS: flo ...
GameplayTagQuery in editor can fail to update to new values or reset after being cancelled
UE - Gameplay - Apr 25, 2024When editing a GameplayTagQuery inside of the editor, there are times when the query editor will not update the query when selecting Ok or fail to return the query to its original state before editi ...
[CrashReport] Integer divide-by-zero | RHIGetRenderQueryResult() [d3d11query.cpp:59]
UE - Graphics Features - Aug 29, 2017This is a common and longstanding crash that has occurred since at least the 4.15 release and has affected more than 200 users. User Descriptionsafter opening a projectwas just trying to start a pr ...
Lightmaps on Mobile Devices Appear Dirty and Blurry
UE - Platform - Mobile - Nov 28, 2017When deploying project to a mobile device, the quality of the baked lighting and shadows becomes very poor compared to "Mobile Preview." Lightmaps appear dirty and blurry, with splotches (As shown i ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - AMD
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house AMD information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Contai ...
Inconsistent texture loading issue within material editor
UE - Rendering - Architecture - Materials - Jul 16, 2025A licensee has reached out via EPS about a texture loading issue they are having in-editor. I summarized the most important points below:The issue relates to texture load failure associated with mat ...
Behavior of configuration file hierarchy is different from document
UE - Foundation - Core - Nov 6, 2015Licensee reported behavior of configuration file hierarchy is different form document here (https://docs.unrealengine.com/latest/INT/Programming/Basics/ConfigurationFiles/index.html) Doc: 1. Engine ...
Static lighting issues with foliage
UE - World Creation - Worldbuilding Tools - Foliage - May 28, 2016The user reports a scene with a reasonable number of foliage instances renders with black lighting: After updating to 4.11 (.1 or .2 doesn't matter) I have not been able to bake my lighting properl ...
Blend Node performs Blend Time after being re-initialized with a different Active Value
OLD - Anim - Jul 10, 2017Setup: Blend by Bool>Slot>Final Pose. Say the bool starts on true. While playing a Montage on the slot, flip the bool value to false. After the montage finishes, the blend node will start on true ...