Unreal Engine Issues

Material Vertex Interpolator with a scalar output is replaced by MCT_Float1 in the output translation which can cause arithmetic errors

Developer Folders Visible Due to Legacy Path Filters

The Other Developers folder is comparing against the virtual path of a file to see if it starts with "/Game/Developers", but the virtual paths of all the developer folders start with "/All/Game/Deve ...

Post Process Material + Stereo Rendering = Left Eye Black

Left Eye Renders black in VR when a PostProcess Material is applied. On Quest Right eye renders post process mat and left eye renders scene, but upsidedown. Also occurs in Packaged Project and/or ...

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

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

Thin translucent doesn't work with separate translucency and Before-DOF

Niagara compiler error, branch in custom hlsl doesn't work properly

UDN Bug: ASTC compression becomes greyscale

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

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

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

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 ...