Unreal Engine Issues
Unreal Engine Issues
Skeletal mesh bones cannot be selected in the viewport of the IK Retargeter
UE - Anim - Rigging - Retargeting - May 2, 2023Skeletal mesh bones cannot be selected in the viewport of the IK Retargeter. They can still be selected via the bone name hierarchy. Reproduces in the following://UE5/Release-5.1 CL 2390901//UE5/Re ...
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 ...
Enabling Wireframe Mode along with HDR (EyeAdaptation) Visualization crashes the Editor
UE - Graphics Features - May 29, 2025In the Viewport, enabling Wireframe Mode (ALT+2) along with HDR (EyeAdaptation) Visualization crashes the Editor. I've tested different versions and this issue is not present on 5.0, but it reproduc ...
Physics object resting on movable platforms have erratic physics behavior in 4.14
UE - Simulation - Physics - Dec 14, 2016Physics object resting on movable platforms have erratic physics behavior in 4.14. This is a regression from 4.13.2-3172292 User Description: When placing more than 10 or 20 blocks on a moving pl ...
Landscape cooking takes as much as 6 times longer in 4.18
UE - LD & Modeling - Terrain - Landscape - Jan 10, 2018Some developers are finding that the change to add a bunch of shader types to FLandscapeMaterialResource::GetExcludedShaderTypes() in 4.18.2 increased their project cooking times on PC or console by ...
Setting a ComboBox on the Server does not always work
UE - Networking - Oct 3, 2015Setting a ComboBox on the Server does not always work. In the attached project, a Multicast Event runs some Set Options, all but one of which appear to work on both Clients and Server. On the Server ...
Crash and Performance issues when Generating Foliage using the Procedural Foliage Volume
UE - World Creation - Worldbuilding Tools - Foliage - Feb 14, 2017Users are reporting crashes and poor performance when generating foliage using the Experimental Procedural Foliage Volume tool. Regression? Yes, this does not occur in the previous engine version o ...
BlackboardComponent observer can be called for the wrong key
UE - AI - BehaviorTree - Feb 7, 2023We need to, at least, prevent this by clearing observers when running a new BT using a different blackboard. Must also think that this might affect licensees relying on the current behavior (might h ...
Construction Script using GetSizeX/Y from Texture 2D reference returns Divide By Zero Warning when Packaging
UE - Graphics Features - Jul 21, 2016A user has found and reported a divide by zero warning within the Construction Script when packaging for Windows. This does not occur while in the editor as when you begin moving around the blueprin ...
Joining a session in PIE with Auto Connect To Server disabled will crash PIE
UE - Networking - Nov 11, 2015Joining a session in PIE with Auto Connect To Server disabled will crash PIE. Note: this is not specific to the Multiplayer Shootout project used in the repro steps; this will occur in any project ...