Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled

Rendering - Jul 19, 2019

Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled.  Working as expected in 4.22 CL# 7053642 Found in 4.23 Preview 2 CL# 7321677 and 4.24 CL# 7437539 This is a regression   ...

RestrictedToClasses UCLASS Meta expects space delimiters but documentation shows comma delimiters

Gameplay - Jul 19, 2019

The documentation: https://docs.unrealengine.com/en-US/Programming/UnrealArchitecture/Reference/Metadata/index.html shows the RestrictedToClasses meta syntax as being RestrictedToClasses="Class1, C ...

Mobile Multi-View 4.23 preview regression

Virtual Reality - Jul 18, 2019

Black-screen when mobile-multi view is enabled in 4.23 preview.  Also confirmed on Oculus Go. +Occuring in 4.24 MAIN @ CL 7436536 Sidenote: In all tested engine versions - when enabling/disabin ...

Sharing Material shaders wastes memory and disappears from the memreport

Rendering - Jul 18, 2019

Enabling bShareMaterialShaderCode breaks memory tracking and wastes memory due to issues in ShaderCodeLibrary. It is also worth noting that after cooking with bShareMaterialShaderCode enabled causes ...

ARSharedWorld, AREnvProbe, and ARSaveLoad fail to build for iOS with clang error

Platform - Mobile - Jul 18, 2019

ARSharedWorld fails to package at the build command for iOS with the following messages. Packaging (iOS): [1/4] sh /Volumes/Storage/Workspaces/Release/Samples/AR/ARSharedWorld4.23/Binaries/IOS/ARS ...

When welding a procedural mesh component to a non-physics simulated static mesh that overlap they collide continuously

Physics - Jul 18, 2019

When attaching a Procedural Mesh Component with a copied static mesh to a static mesh component the two meshes collide and "push" each other (go flying on play). Weld is to be used for simulated ph ...

"Render in main pass" setting appears to be ignored when using ES3 and "Render in Custom Depth" is enabled

Platform - Mobile - Jul 17, 2019

it appears that meshes cannot be removed from the main pass and still write to the custom depth pass when using ES3.1 ...

Texture Object Parameter Being Read Even If It Is Not Used In a Material

Rendering - Jul 17, 2019

Texture Object Parameter Being Read Even If It Is Not Used In a Material.  Working as expected in 4.21 CL# 4753647 Found in 4.22 CL# 7053642, 4.23 Preview 2 CL# 7321677, 4.24 CL# 7329126 This is ...

Textures are Blurry when Scaling an Actor While r.Streaming.DropMips is Set to 2

Rendering - Jul 17, 2019

If a BP actor containing textured static meshes starts with a small transform scale, when scaled up, the texture streamer fails to load in the higher mips and the texture looks blurry. Working as e ...

Niagara Memory Leak in vertex buffer when increasing particle spawn rate on CPU sims

Rendering - Niagara - Jul 16, 2019

Increasing the spawn rate of a CPU particle sim will cause a memory leak in the vertex buffer.  ...