Unreal Engine Issues
Unreal Engine Issues
WorldGridMaterial gets added as Element 0 when importing LOD model
When importing a LOD model, LOD material can get added as element 0, not preserving previous material assignment. It's not possible to re-order/delete the automatically added Element 0 WorldGridMat ...
Hierarchical Instanced Static Mesh component culls before it is completely off screen
UE - Graphics Features - Dec 4, 2017Hierarchical Instanced Static Mesh component culls before it is completely off screen. This only seems to happen with more than 3-4 instance elements. This also does not happen with Instanced Static ...
The packaged build of a project that has a strong pointer initialized to nullptr immediately closes on launch
UE - Foundation - Core - Aug 2, 2019When a strong pointer is set to null the packaged build of the game will immediately close. No crash logs were were made and no Saved folder was made (<Project Name>/Saved/Logs). An example project ...
Custom Depth incorrectly displays in game when Post Process is set to 'Before Tonemapper'
UE - Graphics Features - Oct 28, 2019Custom Depth is not displaying correctly when setting Post process to Before Tonemapping. We see this as a regression. This was working properly in 4.22. ...
Path generated in wrong location from mesh in hidden sublevel
UE - AI - Navigation - Apr 30, 2021[AI] ZoneShapes visualization does not reset after selecting another actor
UE - AI - Jul 26, 2023ZoneShapes do not reset visuals when being de-selected and re-selected. The last piece of the zone shape to be selected will still show as selected when the shape is re-selected, but using the edito ...
Per instance custom data and Material Layers issue
UE - Rendering Architecture - Dec 12, 2023Blueprint Typing Potentially Incorrect when using Chooser Plugin
UE - Anim - Gameplay - Jan 8, 2024This appears to be some form of type confusion. In editor, the type of the result pin is a Packed Level Actor Class Reference, but at runtime, the returned value is a BlueprintGeneratedClass. ...
HDRi backdrops show default material on Meta Quest
UE - Platform - XR - Jan 26, 2024Niagara mesh particles invalidate lighting when "Cast Shadow" is enabled with Hardware Ray Tracing enabled
UE - Graphics Features - Lumen - Jun 24, 2025Lumen HWRT, combined with Niagara Mesh Renderer, can cause the Lumen Scene to be reset, resulting in a sudden change to indirect lighting. ...