Unreal Engine Issues
Unreal Engine Issues
Installed Editor doesn't package the right target if Marketplace plugin are installed before first launch
UE - Platform - Jun 18, 2024Something is wrong with the TargetInfo.json file generated when they are some Marketplace plugin installed. The client reported this workaround: Backup the plugins found in Engine\Plugins\Marketp ...
Get Material Instance ___ Parameter Value not working for Blend Parameter
UE - Rendering - Architecture - Materials - Dec 2, 2022Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
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 ...
Ensure in AR Template on Android
UE - Platform - XR - Jan 5, 2023Regression: Tested in UE5/Release-5.0, this issue did not occur so it is a regression. ...
GAS: Async loaded GameplayCueNotify can execute cue events out of order
UE - Gameplay - Gameplay Ability System - Mar 22, 2025Licensee reported problem via UDN. Context GameplayCues ('cue') are events that can be fired by game code, that are identified via a GameplayTag. Cues can be instantaneous or can be a state on any ...
Opcode shader compilation error when using a TextureSampleParameterCubeArray node with hardware ray tracing enabled
UE - Rendering - Graphics Features - Ray Tracing - Mar 31, 2025Materials containing a cube array texture sampling node will not compile when hardware ray tracing is enabled. The shader compilation error indicates that an invalid op code was used: "Opcode Sample ...
Crash when merging Skeletal Mesh with incomplete LOD streaming
UE - Anim - Rigging - Skeletal Editor - Jul 24, 2026SummaryMerging a Skeletal Mesh whose LOD streaming has not completed crashes with an AccessViolation while the vertex copy reads the Null buffers of LODs that have not been streamed inRoot cause is ...
Spectral Analysis Delegates Do Not Behave As Expected If 3 Or More Are Attached To The Same Submix
UE - Audio - Submixes - Aug 19, 2022When attaching 3 or more Spectral Analysis Delegates to the same Submix, some delegates start returning only zero values. If this is a known limitation of Spectral Analysis Delegates, we should prob ...
AutoLOD changes the static meshes LOD at different distances in VR Packages and Previews than in Editor
UE - Platform - XR - Jul 30, 2020Packaged VR Projects and VR Previews change the LOD at a closer distance than in editor. ...
/std:c++17 key is hidden in generated .vcxproj after adding it to the BuildConfiguration.xml
UE - Core - Cpp Tools - Dec 10, 2021As far as I can tell this is a regression. After including C++17 in the build configuration it shouldn't be hidden in the .vcxproj? ...