FVulkanDynamicRHI::RHIReadSurfaceData​ incorrect for FLinearColor​.

UE - Rendering Architecture - RHI - Mar 4, 2024

The 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 ...

Add and Renaming collapsed graphs in functions breaks refs to local vars

UE - Gameplay - Blueprint Compiler - Nov 6, 2020

When 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, 2024

HISMC always shows lowest LOD

UE - World Creation - Worldbuilding Tools - Foliage - Nov 22, 2016

User 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, 2021

RVT 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, 2021

It 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 ...

Destructing NiagaraParameterStores causes multi threading write conflict

UE - Niagara - Jan 26, 2022

FNiagaraParameterStore::UnbindAll() may be called from both GameThread and RenderingThread. Each may modify the same Binding array, it causes infrequent crashes. In my environment, I was able to r ...

LIVE: Attach Actor to Component crashes the editor when used after Set Simulate Physics

UE - Simulation - Physics - Oct 31, 2014

The user has attached a small project at the link to demonstrate the issue. Occurs in 4.5.1 and well as Main (//depot/UE4/Promotable-CL-2239587). Crash Reporter: [Link Removed] ...