Unreal Engine Issues
Unreal Engine Issues
Skeletal mesh bones cannot be selected in the viewport of the IK Retargeter
UE - ACT Character - 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 ...
Custom lighting channels ignored when object culled in stereoscopic
UE - Platform - XR - Apr 14, 2016When a light that uses lighting channels is only visible in one view during stereoscopic rendering, it affects the default light channel instead of the assigned one in the view that it's not visible ...
Enabling Wireframe Mode along with HDR (EyeAdaptation) Visualization crashes the Editor
UE - Rendering - 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 ...
Lyra host can't hear client movement sounds.
UE - MVF Character - Animation - Aug 25, 2022Repo 5/5 The host can not hear the landing sound from the clients but can hear it's own sounds. Gun sounds are unaffected. The client footstep sounds are also being affected. ...
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 ...
Blurry RVTs after camera jump
UE - Rendering - Features - Aug 7, 2025When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...
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 ...