MAC: Crash on startup

UE - Platform - Apple - Apr 10, 2015

"MacBook pro 13 2015 with yosemite 10.10.3 just crashed after launching ue4." The problem is that the recently introduced calls to IsRHIDeviceNVIDIA occur before the Mac code sets the GRHIVendorID ...

Cine Camera focus does not blur transparent materials

UE - Graphics Features - Jul 9, 2018

The cine camera focus does not blur transparent materials. Found In 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 Preview 5 CL# 4173640, 4.21 CL# 4195822 ...

Niagara Fails to Compile Shader For iOS and Android

UE - Niagara - Aug 2, 2018

Niagara fails to compile shader for iOS and Android. Unable to test in 4.19 due to assets provided being created in 4.20. Found in 4.20 CL# 4233996 and 4.21 CL# 4247867 ...

Rhino blocks not placed correctly when imported

UE - Editor - Content Pipeline - Datasmith - Importer - Oct 15, 2018

The Rhino blocks are imported with the base point at the origin, causing them to import inside of each other when the process is complete. In 4.20 (4.20E4) the blocks are imported apart from each ot ...

Construction Script Does Not Update Parameters Of An Actor Component

UE - Gameplay - Oct 16, 2018

The construction script does not update the parameters of the actor component. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Preview 1 CL# 4435822, 4.22 CL# 4470579 ...

Incorrect/Different hard shading on meshes in Forward Shading

UE - Graphics Features - Dec 18, 2018

With forward shading enabled in 4.21 shading appears to be too hard on certain faces. This is working as expected in 4.20 CL# 4369336 Found in 4.21 CL# 4613538 and 4.22 CL# 4666322 ...

VertexInterpolator Makes Landscape Materials Fail to Compile

UE - Graphics Features - Jan 7, 2019

If a VertexInterpolator is used in a material that is applied to a landscape the material will fail to compile. Found in 4.20 CL# 4369336, 4.21 CL# 4.21 CL# 4613538, 4.22 CL# 4681912 ...

Material Opacity Mask Not Working As Expected in PIE but Does in Standalone

UE - Graphics Features - Feb 5, 2019

Material Mask Opacity is not working in PIE, but works as expected in Standalone.  Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 4862710, and 4.23 CL# 4898645 ...

Eye Adaptation Material Node Only Functions in Surface Material Domain

UE - Graphics Features - Apr 24, 2019

The Eye Adaptation material node only functions in Surface Material Domain. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, and 4.23 CL# 6074473 ...

Draw Post Process Material to Render Target cannot use SceneTexture

UE - Graphics Features - Jun 20, 2019

Draw Post Process Material to Render Target cannot use SceneTexture. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 7053642, 4.23 CL# 7062535 ...