Unreal Engine Issues
Unreal Engine Issues
FVulkanDynamicRHI::RHIReadSurfaceData incorrect for FLinearColor.
UE - Rendering Architecture - RHI - Mar 4, 2024The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...
[Level Instances] Editor Actor Folders does a full refresh after any LI is loaded, leading to wasted time when bulk loading LIs for a given WP region load
UE - World Creation - Worldbuilding Tools - Level Instances - Jun 26, 2025From Licensee: We discovered a pretty big performance hit in editor when loading level instances for a world partition map, specifically: EditorActorFolders.cpp:FActorFolders::OnAllLevelsChanged() ...
Spawning Instanced Meshes with Multiple Collisions Produces Error Log Spam
UE - Gameplay - Jun 24, 2015Constructing instanced meshes with multiple collision components spams the output logs with error messages. ...
Add and Renaming collapsed graphs in functions breaks refs to local vars
UE - Gameplay - Blueprint Compiler - Nov 6, 2020When creating a class (of any kind i.e. an actor), when a collapsed graph is compiled the ref breaks when adding or renaming the graph. ...
Partially loaded level instance becomes fully loaded after editing nested level instance
UE - World Creation - Worldbuilding Tools - Level Instances - Sep 10, 2024FBoneContainer::MakeMeshPoseIndex crash (out-of-bounds array)
UE - Anim - Gameplay - Sep 25, 2024HISMC always shows lowest LOD
UE - World Creation - Worldbuilding Tools - Foliage - Nov 22, 2016User report: HISMCs are currently broken in master. They always show the lowest LOD available for a mesh, so if you have a HISMC with a tree mesh set, you would always see the billboard of the tree ...
Runtime Virtual Texture primitives set to never render to main pass still cause occlusion queries
UE - Graphics Features - Mar 23, 2021RVT only primitives are being pushed through the occlusion culling. It would be more efficient to not do that. ...
Pasting a component binding onto a Spawnable will not set up parenting correctly
UE - Anim - Sequencer - Aug 6, 2021It appears that for spawnable bindings, when adding a child binding through a copy/paste it is not added to the child bindings array on the spawnable, so when GetChildPossessables is called, there a ...
Steam VR client crash when connecting to Server
UE - Platform - XR - Jan 6, 2020Client crashes when connecting to server on Vive. Did not reproduce with Oculus Rift. ...