Unreal Engine Issues
Unreal Engine Issues
Crash when interacting with an Actor containing an Instanced Static Mesh that is in a Locked level
UE - Editor - Workflow Systems - Mar 30, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Editor crashes with an assertion after interaction with an Instance Static Mesh component that is in a locked level. This doesn't af ...
GPU-ARM Mali 400 series phones will render an Opaque Unlit Material as black
UE - Platform - Mobile - Feb 12, 2016ARM Mali 400 Series GPUs are rendering Opaque Unlit Materials as Black instead of the designated color. This is a *regression* from 4.10.2.Devices where Issue OccursDevice NameBrandBug Description ...
Crash in GameplayTag Editor Widget when editing array of tags on a component
UE - Gameplay - May 17, 2022Editing an array of gameplay tags on a component belonging to an actor instance can lead to a crash. There are inconsistencies with how the Gameplay Tag Editor widget behaves:Array of gameplay tags ...
Using Alt+Click to break Transition node connections cannot be undone using the Undo command
OLD - Anim - Nov 28, 2016Using Edit->Undo or Ctrl+Z has no affect after breaking using Alt+Click to break the connection of transition nodes. In the My Blueprint tab, extend Graphs->AnimGraph Regression: No - Same behavio ...
Paper2d Plugin Content Missing from Content Browser
UE - Gameplay - Paper2D - Nov 21, 2016There are a number of assets/content missing from the Paper2D plugin content within the Content Browser. Whether you create a new 4.14 project or upgrade from a previous version, these assets are r ...
Collision Drawing in Cooked Builds (Development) doesn't Show Geometry for Nanite Meshes
UE - Graphics Features - Jun 2, 2025Context The showFlag.CollisionVisibility 1 cvar is a viewport visualization mode that highlights which Actors will block visibility. The showFlag.CollisionPawn 1 cvar is a Player Collision viewmode ...
Multiple templates have Can't Find File warnings when cooking content for Mac
UE - Foundation - Core - Cooker - Jan 13, 2016The following Can't Find File warnings appear for the Flying Code and BP projects when cooking content for Mac.MainFrameActions: Cooking (Mac): UE4Editor: [2016.01.13-20.14.37:469][ 0]LogInit:Displ ...
UMG Animations Scale Retainer Boxes When Only Translating them
UE - Editor - UI Systems - Feb 28, 2020When translating a retainer box in an UMG animation the scale of the retainer box is also affected. Attached is a 4.23 example project. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, ...
"Convert to Blueprint" removes ability to edit component properties
UE - Gameplay - Blueprint - Dec 4, 2018As noted by the user in the linked UDN question, this seems to be a problem with the PointLightComponent property on APointLight not having the VisibleAnywhere property descriptor. Also as noted, th ...
Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin
UE - Gameplay - Blueprint - Sep 21, 2015Execution reroute nodes become wildcard reroute nodes when creating a second reroute node off the same execution pin. Note: this does not appear to affect their functionality as execution reroute no ...