Unreal Engine Issues
Unreal Engine Issues
MRQ GBuffer Output Renders Normal GBuffer instead of BaseColor
UE - Virtual Production - Tools - MRQ - Feb 27, 2025When attempting to use console variables to render the BaseColor output, the GBuffer overview or GBuffer normal output is rendered instead. Using the commands in the Editor viewport shows the BaseC ...
Hierarchical and normal Instanced Static Mesh Components do not maintain PerInstanceRandom values when transforms are modified
UE - Graphics Features - Nov 6, 2017When using PerInstanceRandom in a material that is applied to a Hierarchical or normal Instanced Static Mesh component, there are issues of the value resetting when certain transform operations are ...
Duplicating Level With Large _BuiltData File Results in Editor Crash
UE - Foundation - Core - Jun 7, 2018Trying to duplicate a level in the editor that has a large _BuiltData file results in a crash. In the case of the supplied test level, it is over 3 GB. Crash repros in 4.19.2 and Main (CL 4115885). ...
Bug - Animations and Keep State Fail when scrubbing backward.
UE - Anim - Sequencer - Jan 30, 2020If you scrub past an animation with keep state, and scrub into an animation with defaults everything is fine. When you scrub back to the animation with keep state, the animation breaks, until there ...
Navmesh seems to have buggy behavior when interacting with HISMCs that programmatically set mesh via SetStaticMesh.
UE - AI - Mar 6, 2020Both versions works correctly if HISMC is pre-placed (generated in ConstructionScript). Only when generated dynamically does it fails. The Navmesh isn't being updated after SetStaticMesh and AddInst ...
Android launch images change size while onscreen
UE - Platform - Mobile - May 4, 2020This was reproduced both in Match 3 and a new BP project with a custom launch image. Note that on Pixel 2 the BP project behaves a little differently than Match3. It displays in full size, then s ...
When always loading last project, project logs are saved to the engine folder
UE - Editor - Aug 6, 2020Checked on the Binary version //UE4/Release-4.25 stream CL 13942748 Version 4.25.3, logs are also saved into Engine folder: \AppData\Local\UnrealEngine\4.25\Saved\Logs instead of a Project folderIf a ...
Color space transform in the UI composition is incorrect on DX12 HDR (r.HDR.UI.CompositeMode=1)
UE - Graphics Features - Jun 11, 2021Color space conversion in the UI composition is incorrect on DX12 HDR. In the main() function In CompositeUIPixelShader.usf, you can see the following color space transform.// sRGB -> RRT -> ODT ...
Network Prediction plugin: dispossessing a client pawn results in repeated sim input
UE - Gameplay - Apr 1, 2022After dispossessing an NP-simulated pawn, it appears that the last frame of input is used for the continued simulation of the pawn. For example, a client player may be holding down continuous inp ...
Material slot assignment incorrect after mesh reduction completely removes all triangles from a section
When mesh reduction results in a section becoming empty, the material slots are incorrectly assigned. e.g. if section 0 gets removed due to it having no triangles after reduction, then its material ...