Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_Core!FName::GetDisplayNameEntry() [unrealnames.cpp:894]
UE - Rendering - Architecture - Materials - Sep 14, 2017This is a somewhat common crash in 4.17.1. This same callstack appeared a few times during 4.11, but then has not been seen until recently. Users have not provided any descriptions of their action ...
Pick New sprite option becomes unavailable if you change the view options
Tools - Jan 4, 2018The Pick New sprite option becomes unavailable if you change the view options to either tile or column when working with the keyframes of a 2D animation. This issue affects the project indefinitely ...
Component names do not increment correctly when duplicating a component whose name ends with a number
UE - Gameplay - Components - Apr 10, 2019REGRESSION: Yes, this does not occur in 4.21. This also occurred before CL 58120777, which fixed [Link Removed] Duplicating or Copy/Pasting a component whose name ends in a number does not increme ...
UProceduralMeshComponent::UpdateMeshSection does not call UProceduralMeshComponent::UpdateCollision
UE - Simulation - Physics - Apr 20, 2020Updating a procedural mesh results in an incomplete collision update. Collision bounds appear to get updated properly, but collision data is not updated, despite a navigation rebuild being triggered ...
Data validation FAILED due to IWBE_Blutility containing invalid data
UE - Content - Engine - Jan 11, 20214.26[AssetLog] D:\Binary\UE_4.26\Engine\Content\Tutorial\InWorldBlueprintEditing\TutorialAssets\IWBE_Blutility.uasset: Default__IWBE_Blutility_C is not valid. See the MapCheck log messages for detai ...
Chaining AutomationTool Commands leads to an endless loop
UE - Core - Cpp Tools - Automation Tool Framework - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...
Material Editor Viewport does not display World Position Offset
UE - Rendering - Graphics Features - Mar 19, 2026The preview Viewport in the Material Editor does not correctly render World Position Offset. It appears that the RenderVelocities pass (which is also drawing the depth for the preview sphere) does ...
Instanced Static mesh does not LOD at the same screen distance as standalone mesh
UE - Graphics Features - Nov 11, 2014DESCRIPTION: When using instanced static mesh component in a blueprint that has LODs the normal distances for LODs are not reflected for the instanced static mesh component. AH Post: https://answe ...
Building UE4Game fails during the build phase while packaging on Linux
UE - Platform - Linux - May 19, 2017This is happening only for Blueprint template projects. After I hit the issue on the BP project, I went back and tried a Code template project as well. I was NOT able to reproduce this with a Code t ...
Actor Variable References settable when in type array in Level blueprint
UE - Gameplay - Blueprint - Nov 13, 2017There is an issue with Actor Variable References that become settable when in type array in the Level blueprint. Once in the array, the actor can be successfully addressed, however using the Save Cu ...