Unreal Engine Issues
Unreal Engine Issues
Light rendering becomes broken when at a distance of ~1000000 from origin
UE - Graphics Features - Oct 7, 2020Tested at X=20,000 with no issue Tested at X=500,000 with no issue Tested at X=1,000,000 issue occurs NOT A REGRESSION ...
Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6)
UE - Anim - Sequencer - Jun 25, 2025Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6). As described in the Steps to Reproduce section, the command expands the prope ...
[CrashReport] UE4Editor_Kismet!FBlueprintGlobalOptionsDetails::CanDeprecateBlueprint() [blueprintdetailscustomization.cpp:5127]
UE - Gameplay - Blueprint Editor - Jul 19, 2017This 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 ...
Popping Ribbon UVs
UE - Niagara - Mar 10, 2025Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...
Level Blueprint zoom value is different for different templates.
Docs - Samples - Jan 30, 2017I'm not sure where to set this value, but it's extremely noticeable when the value defaults to -7 and you go and place a node and it looks like a colorful square smaller than your fingernail. I tri ...
LIVE: Morph Targets do not update in Construction Script
OLD - Anim - Oct 21, 2014Morph Targets do not update in Construction Script Tested in 4.5 Release and in Latest Promoted (//depot/UE4/Promoted-CL-2323471) ...
Widget 3D Component is not rendering on specific Android devices
UE - Platform - Mobile - Nov 20, 2015Widget 3D Component isn't rendering properly on the Samsung devices. I've tested on the Samsung Galaxy Note 2, Samsung Nexus S, Samsung Galaxy S3. I'm not having any trouble on the Nexus 5 though. ...
Bitfield Bools in a struct and AnimBlueprint transitions not working together
UE - Gameplay - Blueprint - Apr 12, 2016USTRUCT(BlueprintType) struct FTestStruct { GENERATED_USTRUCT_BODY() UPROPERTY(BlueprintReadWrite) uint32 ValueC : 1 ; UPROPERTY(BlueprintReadWrite) uint32 ValueD : 1 ; }; A ...
[GPU Lightmass] bake artifact w/ two actors of same static mesh
UE - Graphics Features - Jun 22, 2022As per a bug report from Pixomondo: if there are two static meshes in the scene and one has a rotation, it gets a GPULM bake artifact as if it is intersecting with the unrotated version of itself. S ...
Empty Mesh Sections with MergeActors Tool
UE - World Creation - Worldbuilding Tools - HLOD - Sep 27, 2019Map Check will output the following error, which makes no sense: SM_FourCubes_1 - 1 element(s) with zero triangles in static mesh 'SM_FourCubes' ...