Refraction not working with MakeMaterialAttributes

UE - Graphics Features - Sep 14, 2015

When setting a material to Use Material Attributes and then feeding in a Refraction value with MakeMaterialAttributes, the refraction doesn't work properly Reported in 4.8, but I tested in Main as ...

Collision jitters when going up stairs, causing erratic overlap events.

UE - Simulation - Physics - Jan 11, 2016

When overlapping with another object while moving up stairs with a character, the overlap events (OnBegin / OnEnd) that occur will be called multiple times in an alternating fashion. This will also ...

Vertex Painting - Unexpected behaviour when painting Skeletal Mesh with Low Radius Brush

Tools - Oct 21, 2019

Unexpected behaviour when painting skeletal meshes with small radius brush. This does not occur with static meshes. Confirmed in 4.25 MAIN @ CL 9730599 ...

Convert Mouse location to world Space appears to be returning the wrong values in VR

UE - Platform - XR - Jul 14, 2015

When using the node "ConvertMouseLocationToWorldSpace" in VR appears to be restricting the mouses position to a small section of the available screen. ...

Particles can not be displayed once they disappear in ParticleLOD

UE - Niagara - Jul 22, 2019

I have attached a project to reproduce. [Link Removed] The problem is that if there are multiple emitters It seems to reproduce when all Emitter is Disable. It works well if there is one Enable. [ ...

Particles can flicker at the end of first emitter loop when interpolated spawning is enabled

UE - Niagara - Jun 18, 2020

Particles flicker at the end of first emitter loop when interpolated spawning is enabled This issue does not occur if interpolated spawning is disabled. This issue does not occur for any of the su ...

Fbx importer: Issue when reimporting staticmesh base LOD and there is some custom LOD

UE - Editor - Content Pipeline - Import and Export - Mar 2, 2023

When we reset the material to fbx we should take care of the LOD since we will change/reorder the material slot array. ...

Building in VS fails if Application.ico is missing

UE - Foundation - Core - Mar 25, 2015

When building a project in VS, the build process will fail if Application.ico is missing from the /Build/Windows/ folder. User reported seeing this when checking in/checking out a project on differ ...

Max Deviation setting is never used for Mesh Reduction, causes incorrect values for automatically computed LOD distances

UE - Graphics Features - Feb 1, 2018

The Max Deviation setting for a static mesh LOD is never used for Mesh Reduction. This results in incorrect values for automatically computed LOD distances, because the calculation uses the Max Devi ...

Unable to uncap framerate in Vulkan

UE - Rendering Architecture - RHI - Feb 28, 2019

On Linux machines users are unable to uncap their framerate in the editor. This issue has been observed in multiple maps, including TM-URO and TM-AnimPhys, as well as Third Person Blueprint projects ...