Unreal Engine Issues

SkelMeshMerge not working for meshes with >1 LOD

Reported on UDN (see Additional Info URL). Looking at code, we call USkeletalMesh::AllocateResourceForRendering for every LOD, but we should only call it once. Need to check if our SkelMeshMerge t ...

Actor Enable Collision does not affect ISM

The problem was reported via UE Bug Submission. I was able to repro with their provided test project. ...

Scene Capture Cube not affected by bloom

SplineComponent - setting roll affects tangents

Licensee reports issue with setting roll on a spline component control point. ...

Synthetic benchmark is affected by Scalability Settings

Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...

Crash at compile time when using a VariableSet node with a local variable created by pasting a private property

When a property is created in this way, a local variable with a Private flag is generated. Since such a variable is generally not desirable, it would be better to remove the Private flag upon pastin ...

Morph Target Preview Slider Defaults to One When Entered Value is Larger Than One

When morph target weight value is set to a number other than 1 the slider sets it back to being a value under 1. It does not go down from the number that it was set to but instead defaults to being ...

Crash when upgrading Nvidia GFX driver from Version 457.85 with open Project

Repro Rate: 5/5 Summary: When opening a Project in UE version 5.1.0 with Nvidia GFX driver version ###, the user is notified that there are known issues with this driver through a pop-up:WARNING: K ...

[CrashReport][Assert] UnrealEditor-RHI!FRHIResource::MarkForDelete() [Engine/Source/Runtime/RHI/Private/RHIResources.cpp:49]

One of the users described this issue as below. "At seemingly random times while working in the material graph, some action will cause a hitch or freeze, and quickly after the engine will crash, an ...

LIVE: RENDERING: Precomputed Visibility volume is not registering Statically Occluded Primitives nor allowing visibility cells to be rendered

Build: 4.2.1-2101290 Description: Currently, precomputed visibility volumes do not seem to alter occluded primitives, nor do they show visibility cells when r.ShowPrecomputedVisibilityCells 1 is en ...