Unreal Engine Issues
Unreal Engine Issues
Landscape Materials Layers Show "none" but are Still Able to Paint on Landscape
UE - LD & Modeling - Terrain - Landscape - Jun 15, 2015Landscape material layers show "none" after generating weight blended layers in landscape paint mode. The landscape layers are painted as normal but do not show that any layer is assigned. ...
UK2Node_EnumLiteral always outputs defaulted (0) value if input pin is connected
UE - Gameplay - Blueprint - Sep 28, 2018The reported behavior repros in 4.20 and 4.21, but does not repro in 4.19. Regarding the "Literal Enum" node in blueprints: When an input enum value is connected to the input pin, the output is al ...
CLion cannot update CMake for an Unreal Studio project created on a drive other than the one the Engine is installed on
UE - Foundation - Cpp Tools - Apr 22, 2019If an Unreal Studio project is created on a different drive from where the Engine is installed, CLion is unable to successfully update CMake. The location for where Engine files can be found appears ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...
Lighting channels not working as expected when enabling Ray Tracing Shadow
UE - Graphics Features - Lumen - Oct 13, 2020Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...
Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.
UE - Rendering Architecture - Materials - May 30, 2025In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...
Engine Crashes When Converting an Int to Float For a Map Key In Blueprints
UE - Gameplay - Blueprint Editor - Dec 11, 2019The engine crashes when trying to automatically create a type conversion node when they are used a key for a map. Found in 4.24 CL#10570792 Reproduced in 4.25 Main CL# 10646676 ...
LevelSequence Editor consumes input, even if the user last focused the Level Viewport
UE - Anim - Sequencer - Nov 27, 2024LevelSequenceEditor has input priority over the Level viewport and other editor modules even though the Level viewport has been the last one selected. An example would be a cut operation. If you ha ...
Duplicate slots being created in Anim Slot Manager
OLD - Anim - Dec 11, 2015Duplicate slots are being created automatically under the Default Group in the AnimSlotManager. This is causing some problems because it replaces the originally created slot with the duplicate in t ...
Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics
UE - Simulation - Physics - Destruction - Dec 17, 2014Objects parented to a Destructible Mesh within a bp will not follow if the DM is simulating physics. ...