Unreal Engine Issues
Unreal Engine Issues
Ray tracing scene doesn't reflect WPO with instance custom data
UE - Rendering - Graphics Features - Ray Tracing - Sep 19, 2025When custom instance data is used to calculate WPO in a Material and applied to an ISM the WPO value in the Lumen scene (ray tracing scene) is different than the visible scene resulting in incorrect ...
Landscape Textures Patches issue when using "Texture Backed Render Target" as the Height Patch Source Mode where Landscape patches are not applying properly the first time a level is opened after restart
UE - Graphics Tools - Terrain - Landscape - Oct 6, 2025Context: Landscape patches are components that can be attached to meshes to affect the landscape as the mesh is repositioned. Problem: The problem is that when using "Texture Backed Render Target" ...
MRQ reports missing frames when rendering multiple cameras on a Sequencer camera track with Temporal Sample Count > 1
UE - Virtual Production - Tools - MRQ - Feb 2, 2026If there are multiple cameras in the Sequencer camera track, everything works correctly when the Temporal Sample Count for anti-aliasing is set to 1. However, when it is set to 3, the following erro ...
Blueprints can enter a corrupted state where Actors construct DefaultSubobjects using CreateOptionalDefaultSubobject, even though child classes call DoNotCreateDefaultSubobject
UE - Framework - Blueprint - Nov 28, 2025Blueprints can enter a corrupted state where Actors construct DefaultSubobjects using CreateOptionalDefaultSubobject, even though child classes call DoNotCreateDefaultSubobject. In some situations, ...
Vehicle Template dashboard texts is blurred when moving
Docs - Samples - Jan 14, 2015Descrition: When using the vehicle template the text rendered on the dashboard when using the car is blurred. This seems likely to how the text here is setup vs the hud for the 3rd person view. ...
Blueprints components setup through code cannot have the parent socket set inside the blueprint
UE - Gameplay - Blueprint - Aug 28, 2015If a component is created/setup through code and set as the child of a mesh component, clicking the magnifying glass in the Parent Socket field does not bring up the list of mesh sockets to attach t ...
[Linux] Setting fullscreen game resolution below set window resolution does not stretch the game across the window.
UE - Platform - Linux - Aug 13, 2015If the resolution of the game is set to something lower than the screen resolution and then set to fullscreen the game will not stretch to fit the screen and portions will be left black. ...
Setting scale to 0 in any direction breaks overlap events
UE - Simulation - Physics - May 26, 2015When the scale of an actor is set to 0 in either X, Y or Z any overlap events will fail to trigger overlap events. ...
Two event graphs with similar names will populate events to only one graph in My Blueprint pane
UE - Gameplay - Blueprint - Jan 27, 2016Two event graphs with similar names will populate events to only one graph in the My Blueprint pane. This specifically occurs when the event graphs are named with and without spaces in the name, suc ...
character movement velocity negatively affected by framerate
UE - Gameplay - Oct 28, 2015Lower framerates directly affect the velocity of a character's movement if that velocity is provided by another source. ...