Unreal Engine Issues
Unreal Engine Issues
Ray traced shadow sample settings greater than 1 cause shadow artifacts
UE - Graphics Features - Lumen - Sep 23, 2020Alternative you can follow these steps to reproduce 1. Create a new project with ray tracing enabled 2. Activate the groom plugins 3. Import a groom asset into the scene 4. Add any light type to the ...
Cannot instantiate an InstancedStaticMesh component with ConstructionScript
UE - Graphics Features - Jul 21, 2024Starting with Unreal Engine 5.4, the logic for adding ISM instances by adding ISM components in the Construction Script (like below) has failed. [Image Removed] This issue accidentally was introd ...
WMR: Crash in VR Edit Mode
UE - Platform - XR - Dec 19, 2018Editor crashes when entering VR Edit Mode with WMR HMD ...
Distance Field AO does not work below a landscape
UE - Graphics Features - Jun 25, 2015This may be a limitation at the moment, but landscapes will block any AO generated from Distance Fields for anything that is below the landscapes surface. This can cause issues for anyone using a ca ...
NavMesh does not update properly when "Can Ever Affect Navigation" is toggled
UE - AI - Mar 27, 2015if I place a mesh with "Can Ever Affect Navigation" set to true, then set it to false, it will leave the NavMesh with a bugged "hole" that AI does not path around correctly (causing the "Blocked" er ...
(Paper2D) Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game
UE - Gameplay - Paper2D - Nov 29, 2017With tile maps, Polygon Collision does not correctly rebuild when using rebuild collision node in packaged game. This issue does not appear to be a regression. Versions Tested: Issue occurs on all ...
Unable to bind events to OnPerceptionUpdated in Blueprints
UE - Gameplay - Blueprint - Dec 18, 2017Attempting to bind an event to OnPerceptionUpdated results in an error in Blueprints. It seems that this is caused by the TArray in the function signature not being a constant reference. Current co ...
Flat Tessellation broken on DX12 renderer
UE - Graphics Features - Feb 13, 2018Behavior reproduced in 4.17.2 CL 3658906, 4.18.3 CL 3832480 and 4.19.P4 CL 3873914 To run the engine with DX12 I made a shortcut of the UE4Editor.exe found at D:\Epic Games\UE_4.18\Engine\Binaries\ ...
Auto Compute LOD Distance doesn't properly change screen sizes
UE - Graphics Features - Jun 12, 2018Auto Compute LOD Distance doesn't properly change screen sizes. The screen size for each LOD will be exactly the same regardless of the mesh you use with generated LODs. Working as expected in 4.19 ...
When "Support Material Layers" is Enabled Material Instance Parameter Values Reset to Default Value When Override is Unchecked
UE - Graphics Features - Jul 14, 2018If "Support Material Layers" is enabled, every time you uncheck an overridden parameter box in a material instance the value of that parameter will reset to its parent's default value instead of sta ...