MeshPaint textures don't work when r.VT.SplitPhysicalPoolSize is set

UE - Rendering Architecture - Mar 21, 2025

Whenever we have a non zero setting for r.VT.SplitPhysicalPoolSize, then mesh painting doesn't function correctly. ...

UDN Bug: ASTC compression becomes greyscale

UE - Anim - Mutable - Feb 13, 2025

Bug reported at https://udn.unrealengine.com/s/question/0D5QP00000tOpXN0A0/using-mutable-plugin-results-in-greyscale-textures-on-android-xr?fromCase=1 ...

Bilinear Filtering creating Artifacts on Edges of Paper2D Sprites

UE - Gameplay - Paper2D - Aug 23, 2016

A user is reporting some artifacts on the edges of his sprites when using bilinear filtering for the texture settings. These artifacts do not appear when using the Paper2D texture settings (Nearest ...

QAEntry FallenSmall_x0_y0 Landscape Rendering Black

UE - LD & Modeling - Terrain - Landscape - Oct 20, 2016

I was working through the WorldComposition_ImportTiledLandscape_Edit test and noticed that this rendered black. There might be a problem with the landscape layer data. This is a regression from our ...

Subsurface Profile - Full resolution skin shading blows out results from ambient cubemap

UE - Graphics Features - Jan 12, 2017

Since the change to Subsurface Profile shader in 4.14 their use with ambient cubemaps have started giving blown out results that come back either white or very desaturated in the viewport. The curre ...

Vector Parameters are not registering as float4 in Custom script or via Component Mask

UE - Graphics Features - Oct 9, 2015

User reported trying to use a Vector Parameter with a Custom Expression and the parameter was only registered as a Float3 and would give the X3017 error when compiling. I confirmed this and teste ...

Crash when changing the AnimNotifyState property after moving the AnimNotifyState range added to AnimMotage

OLD - Anim - Jul 5, 2019

NotifyStateClass may be nullptr when AnimNotifyState and AnimNotify swap occur in NotifyTrack. Workaround: SAnimNotifyPanel.cpp void SAnimNotifyPanel::OnPropertyChanged(UObject* ChangedObject ...